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Pérez-Vidal RM, Gadea A, Domingo-Pardo C, Gargano A, Valiente-Dobón JJ, Clément E, Lemasson A, Coraggio L, Siciliano M, Szilner S, Bast M, Braunroth T, Collado J, Corina A, Dewald A, Doncel M, Dudouet J, de France G, Fransen C, González V, Hüyük T, Jacquot B, John PR, Jungclaus A, Kim YH, Korichi A, Labiche M, Lenzi S, Li H, Ljungvall J, López-Martens A, Mengoni D, Michelagnoli C, Müller-Gatermann C, Napoli DR, Navin A, Quintana B, Ramos D, Rejmund M, Sanchis E, Simpson J, Stezowski O, Wilmsen D, Zielińska M, Boston AJ, Barrientos D, Bednarczyk P, Benzoni G, Birkenbach B, Boston HC, Bracco A, Cederwall B, Cullen DM, Didierjean F, Eberth J, Gottardo A, Goupil J, Harkness-Brennan LJ, Hess H, Judson DS, Kaşkaş A, Korten W, Leoni S, Menegazzo R, Million B, Nyberg J, Podolyak Z, Pullia A, Ralet D, Recchia F, Reiter P, Rezynkina K, Salsac MD, Şenyiğit M, Sohler D, Theisen C, Verney D. Evidence of Partial Seniority Conservation in the πg_{9/2} Shell for the N=50 Isotones. Phys Rev Lett 2022; 129:112501. [PMID: 36154392 DOI: 10.1103/physrevlett.129.112501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 02/08/2022] [Accepted: 07/29/2022] [Indexed: 06/16/2023]
Abstract
The reduced transition probabilities for the 4_{1}^{+}→2_{1}^{+} and 2_{1}^{+}→0_{1}^{+} transitions in ^{92}Mo and ^{94}Ru and for the 4_{1}^{+}→2_{1}^{+} and 6_{1}^{+}→4_{1}^{+} transitions in ^{90}Zr have been determined in this experiment making use of a multinucleon transfer reaction. These results have been interpreted on the basis of realistic shell-model calculations in the f_{5/2}, p_{3/2}, p_{1/2}, and g_{9/2} proton valence space. Only the combination of extensive lifetime information and large scale shell-model calculations allowed the extent of the seniority conservation in the N=50 g_{9/2} orbital to be understood. The conclusion is that seniority is largely conserved in the first πg_{9/2} orbital.
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Affiliation(s)
- R M Pérez-Vidal
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, Valencia E-46980, Spain
- INFN Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
| | - A Gadea
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, Valencia E-46980, Spain
| | - C Domingo-Pardo
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, Valencia E-46980, Spain
| | - A Gargano
- INFN Complesso Universitario di Monte S. Angelo, Via Cintia, I-80126 Napoli, Italy
| | | | - E Clément
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
| | - A Lemasson
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
| | - L Coraggio
- INFN Complesso Universitario di Monte S. Angelo, Via Cintia, I-80126 Napoli, Italy
- Dipartimento di Matematica e Fisica, Università degli Studi della Campania "Luigi Vanvitelli", viale Abramo Lincoln 5, I-81100 Caserta, Italy
| | - M Siciliano
- Physics Division, Argonne National Laboratory, Lemont, 60439 Illinois, USA
| | - S Szilner
- Ruder Bošković Institute, 10000 Zagreb, Croatia
| | - M Bast
- Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
| | - T Braunroth
- Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
| | - J Collado
- Departamento de Ingeniería Electrónica, Universitat de Valencia, Burjassot, E-46100 Valencia, Spain
| | - A Corina
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia BC V5A 1S6, Canada
| | - A Dewald
- Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
| | - M Doncel
- Department of Physics, Stockholm University, SE-106 91 Stockholm, Sweden
| | - J Dudouet
- Université Lyon, Université Claude Bernard Lyon 1, CNRS/IN2P3, IP2I Lyon, F-69622 Villeurbanne, France
| | - G de France
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
| | - C Fransen
- Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
| | - V González
- Departamento de Ingeniería Electrónica, Universitat de Valencia, Burjassot, E-46100 Valencia, Spain
| | - T Hüyük
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, Valencia E-46980, Spain
- Instituto de Estructura de la Materia, CSIC, Madrid, E-28006 Madrid, Spain
| | - B Jacquot
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
| | - P R John
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - A Jungclaus
- Instituto de Estructura de la Materia, CSIC, Madrid, E-28006 Madrid, Spain
| | - Y H Kim
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
- Institut Laue-Langevin, 71 Avenue des Martyrs, 38042 Grenoble, France
| | - A Korichi
- IJCLab Orsay, IN2P3-CNRS, Université Paris-Saclay and Université Paris-Sud, 91405 Orsay, France
| | - M Labiche
- STFC Daresbury Laboratory, Daresbury, Warrington WA4 4AD, United Kingdom
| | - S Lenzi
- Dipartimento di Fisica e Astronomia dell'Università di Padova, I-35131 Padova, Italy
- INFN Sezione di Padova, I-35131 Padova, Italy
| | - H Li
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
| | - J Ljungvall
- IJCLab Orsay, IN2P3-CNRS, Université Paris-Saclay and Université Paris-Sud, 91405 Orsay, France
| | - A López-Martens
- IJCLab Orsay, IN2P3-CNRS, Université Paris-Saclay and Université Paris-Sud, 91405 Orsay, France
| | - D Mengoni
- Dipartimento di Fisica e Astronomia dell'Università di Padova, I-35131 Padova, Italy
- INFN Sezione di Padova, I-35131 Padova, Italy
| | - C Michelagnoli
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
- Institut Laue-Langevin, 71 Avenue des Martyrs, 38042 Grenoble, France
| | - C Müller-Gatermann
- Physics Division, Argonne National Laboratory, Lemont, 60439 Illinois, USA
- Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
| | - D R Napoli
- INFN Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
| | - A Navin
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
| | - B Quintana
- Laboratorio de Radiaciones Ionizantes, Universidad de Salamanca, E-37008 Salamanca, Spain
| | - D Ramos
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
| | - M Rejmund
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
| | - E Sanchis
- Departamento de Ingeniería Electrónica, Universitat de Valencia, Burjassot, E-46100 Valencia, Spain
| | - J Simpson
- STFC Daresbury Laboratory, Daresbury, Warrington WA4 4AD, United Kingdom
| | - O Stezowski
- Université Lyon, Université Claude Bernard Lyon 1, CNRS/IN2P3, IP2I Lyon, F-69622 Villeurbanne, France
| | - D Wilmsen
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
| | - M Zielińska
- Irfu, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A J Boston
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | | | - P Bednarczyk
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, ul. Radzikowskiego 152, 31-342 Kraków, Poland
| | - G Benzoni
- INFN Sezione di Milano, I-20133 Milano, Italy
| | - B Birkenbach
- Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
| | - H C Boston
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - A Bracco
- INFN Sezione di Milano, I-20133 Milano, Italy
- Dipartimento di Fisica, Università di Milano, I-20133 Milano, Italy
| | - B Cederwall
- Department of Physics, KTH Royal Institute of Technology, SE-10691 Stockholm, Sweden
| | - D M Cullen
- Nuclear Physics Group, Schuster Laboratory, University of Manchester, Manchester M13 9PL, United Kingdom
| | - F Didierjean
- Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
| | - J Eberth
- Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
| | - A Gottardo
- INFN Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
| | - J Goupil
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
| | - L J Harkness-Brennan
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - H Hess
- Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
| | - D S Judson
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - A Kaşkaş
- Department of Physics, Ankara University, 06100 Besevler-Ankara, Turkey
| | - W Korten
- Irfu, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - S Leoni
- INFN Sezione di Milano, I-20133 Milano, Italy
- Dipartimento di Fisica, Università di Milano, I-20133 Milano, Italy
| | - R Menegazzo
- INFN Sezione di Padova, I-35131 Padova, Italy
| | - B Million
- INFN Sezione di Milano, I-20133 Milano, Italy
| | - J Nyberg
- Department of Physics and Astronomy, Uppsala University, SE-75120 Uppsala, Sweden
| | - Zs Podolyak
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - A Pullia
- INFN Sezione di Milano, I-20133 Milano, Italy
- Dipartimento di Fisica, Università di Milano, I-20133 Milano, Italy
| | - D Ralet
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
| | - F Recchia
- Dipartimento di Fisica e Astronomia dell'Università di Padova, I-35131 Padova, Italy
- INFN Sezione di Padova, I-35131 Padova, Italy
| | - P Reiter
- Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
| | - K Rezynkina
- INFN Sezione di Padova, I-35131 Padova, Italy
- Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
| | - M D Salsac
- Irfu, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - M Şenyiğit
- Department of Physics, Ankara University, 06100 Besevler-Ankara, Turkey
| | - D Sohler
- Institute for Nuclear Research, Atomki, 4001 Debrecen, P.O. Box 51, Hungary
| | - Ch Theisen
- Irfu, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - D Verney
- IJCLab Orsay, IN2P3-CNRS, Université Paris-Saclay and Université Paris-Sud, 91405 Orsay, France
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Delafosse C, Verney D, Marević P, Gottardo A, Michelagnoli C, Lemasson A, Goasduff A, Ljungvall J, Clément E, Korichi A, De Angelis G, Andreoiu C, Babo M, Boso A, Didierjean F, Dudouet J, Franchoo S, Gadea A, Georgiev G, Ibrahim F, Jacquot B, Konstantinopoulos T, Lenzi SM, Maquart G, Matea I, Mengoni D, Napoli DR, Nikšić T, Olivier L, Pérez-Vidal RM, Portail C, Recchia F, Redon N, Siciliano M, Stefan I, Stezowski O, Vretenar D, Zielinska M, Barrientos D, Benzoni G, Birkenbach B, Boston AJ, Boston HC, Cederwall B, Charles L, Ciemala M, Collado J, Cullen DM, Désesquelles P, de France G, Domingo-Pardo C, Eberth J, González V, Harkness-Brennan LJ, Hess H, Judson DS, Jungclaus A, Korten W, Lefevre A, Legruel F, Menegazzo R, Million B, Nyberg J, Quintana B, Ralet D, Reiter P, Saillant F, Sanchis E, Theisen C, Valiente Dobon JJ. Pseudospin Symmetry and Microscopic Origin of Shape Coexistence in the ^{78}Ni Region: A Hint from Lifetime Measurements. Phys Rev Lett 2018; 121:192502. [PMID: 30468583 DOI: 10.1103/physrevlett.121.192502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 08/27/2018] [Indexed: 06/09/2023]
Abstract
Lifetime measurements of excited states of the light N=52 isotones ^{88}Kr, ^{86}Se, and ^{84}Ge have been performed, using the recoil distance Doppler shift method and VAMOS and AGATA spectrometers for particle identification and gamma spectroscopy, respectively. The reduced electric quadrupole transition probabilities B(E2;2^{+}→0^{+}) and B(E2;4^{+}→2^{+}) were obtained for the first time for the hard-to-reach ^{84}Ge. While the B(E2;2^{+}→0^{+}) values of ^{88}Kr, ^{86}Se saturate the maximum quadrupole collectivity offered by the natural valence (3s, 2d, 1g_{7/2}, 1h_{11/2}) space of an inert ^{78}Ni core, the value obtained for ^{84}Ge largely exceeds it, suggesting that shape coexistence phenomena, previously reported at N≲49, extend beyond N=50. The onset of collectivity at Z=32 is understood as due to a pseudo-SU(3) organization of the proton single-particle sequence reflecting a clear manifestation of pseudospin symmetry. It is realized that the latter provides actually reliable guidance for understanding the observed proton and neutron single particle structure in the whole medium-mass region, from Ni to Sn, pointing towards the important role of the isovector-vector ρ field in shell-structure evolution.
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Affiliation(s)
- C Delafosse
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - D Verney
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - P Marević
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
- CEA, DAM, DIF, F-91297 Arpajon, France
| | - A Gottardo
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - C Michelagnoli
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Caen F-14076, France
| | - A Lemasson
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Caen F-14076, France
| | - A Goasduff
- Instituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
| | - J Ljungvall
- CSNSM, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - E Clément
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Caen F-14076, France
| | - A Korichi
- CSNSM, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - G De Angelis
- Instituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
| | - C Andreoiu
- Departement of Chemistry, Simon Fraser University, Burnaby, British Columbia, V5A S16, Canada
| | - M Babo
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Caen F-14076, France
| | - A Boso
- Departimento di Fisica e Astronomia, Università di Padova, and INFN, Sezione di Padova, I-35131 Padova, Italy
| | - F Didierjean
- Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
| | - J Dudouet
- Université Lyon, Université Lyon 1, CNRS/IN2P3, IPN-Lyon, F-69622, Villeurbanne, France
| | - S Franchoo
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - A Gadea
- IFIC, CSIC-Universitat Valencia, Apartado Oficial 22085, 46071 Valencia, Spain
| | - G Georgiev
- CSNSM, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - F Ibrahim
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - B Jacquot
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Caen F-14076, France
| | - T Konstantinopoulos
- CSNSM, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - S M Lenzi
- Departimento di Fisica e Astronomia, Università di Padova, and INFN, Sezione di Padova, I-35131 Padova, Italy
| | - G Maquart
- Université Lyon, Université Lyon 1, CNRS/IN2P3, IPN-Lyon, F-69622, Villeurbanne, France
| | - I Matea
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - D Mengoni
- Departimento di Fisica e Astronomia, Università di Padova, and INFN, Sezione di Padova, I-35131 Padova, Italy
| | - D R Napoli
- Instituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
| | - T Nikšić
- Department of Physics, Faculty of Science, University of Zagreb, Bijenička c. 32, 10000 Zagreb, Croatia
| | - L Olivier
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - R M Pérez-Vidal
- IFIC, CSIC-Universitat Valencia, Apartado Oficial 22085, 46071 Valencia, Spain
| | - C Portail
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - F Recchia
- Departimento di Fisica e Astronomia, Università di Padova, and INFN, Sezione di Padova, I-35131 Padova, Italy
| | - N Redon
- Université Lyon, Université Lyon 1, CNRS/IN2P3, IPN-Lyon, F-69622, Villeurbanne, France
| | - M Siciliano
- Instituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
| | - I Stefan
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - O Stezowski
- Université Lyon, Université Lyon 1, CNRS/IN2P3, IPN-Lyon, F-69622, Villeurbanne, France
| | - D Vretenar
- Department of Physics, Faculty of Science, University of Zagreb, Bijenička c. 32, 10000 Zagreb, Croatia
| | - M Zielinska
- CEA de Saclay, IRFU, F-91191 Gif-sur-Yvette, France
| | | | - G Benzoni
- INFN Sezione di Milano, I-20133 Milano, Italy
| | - B Birkenbach
- Institut für Kernphysik, Universität zu Köln, Zülpicher Strasse 77, D-50937 Köln, Germany
| | - A J Boston
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool, L69 7ZE, United Kingdom
| | - H C Boston
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool, L69 7ZE, United Kingdom
| | - B Cederwall
- Department of Physics, Royal Institute of Technology, SE-10691 Stockholm, Sweden
| | - L Charles
- Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
| | - M Ciemala
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, ul. Radzikowskiego 152, 31-342 Kraków, Poland
| | - J Collado
- Departamento de Ingeniería Electrónica, Universitat de Valencia, Burjassot, Valencia 46100, Spain
| | - D M Cullen
- Nuclear Physics Group, Schuster Laboratory, University of Manchester, Manchester, M13 9PL, United Kingdom
| | - P Désesquelles
- CSNSM, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - G de France
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Caen F-14076, France
| | - C Domingo-Pardo
- IFIC, CSIC-Universitat Valencia, Apartado Oficial 22085, 46071 Valencia, Spain
| | - J Eberth
- Institut für Kernphysik, Universität zu Köln, Zülpicher Strasse 77, D-50937 Köln, Germany
| | - V González
- Departamento de Ingeniería Electrónica, Universitat de Valencia, Burjassot, Valencia 46100, Spain
| | - L J Harkness-Brennan
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool, L69 7ZE, United Kingdom
| | - H Hess
- Institut für Kernphysik, Universität zu Köln, Zülpicher Strasse 77, D-50937 Köln, Germany
| | - D S Judson
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool, L69 7ZE, United Kingdom
| | - A Jungclaus
- Instituto de Estructura de la Materia, CSIC, Madrid, E-28006 Madrid, Spain
| | - W Korten
- CEA de Saclay, IRFU, F-91191 Gif-sur-Yvette, France
| | - A Lefevre
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Caen F-14076, France
| | - F Legruel
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Caen F-14076, France
| | - R Menegazzo
- Departimento di Fisica e Astronomia, Università di Padova, and INFN, Sezione di Padova, I-35131 Padova, Italy
| | - B Million
- INFN Sezione di Milano, I-20133 Milano, Italy
| | - J Nyberg
- Department of Physics and Astronomy, Uppsala University, SE-75120 Uppsala, Sweden
| | - B Quintana
- Laboratorio de Radiaciones Ionizantes, Universidad de Salamanca, E-37008 Salamanca, Spain
| | - D Ralet
- CSNSM, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - P Reiter
- Institut für Kernphysik, Universität zu Köln, Zülpicher Strasse 77, D-50937 Köln, Germany
| | - F Saillant
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Caen F-14076, France
| | - E Sanchis
- Departamento de Ingeniería Electrónica, Universitat de Valencia, Burjassot, Valencia 46100, Spain
| | - Ch Theisen
- CEA de Saclay, IRFU, F-91191 Gif-sur-Yvette, France
| | - J J Valiente Dobon
- Instituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
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Dudouet J, Lemasson A, Duchêne G, Rejmund M, Clément E, Michelagnoli C, Didierjean F, Korichi A, Maquart G, Stezowski O, Lizarazo C, Pérez-Vidal RM, Andreoiu C, de Angelis G, Astier A, Delafosse C, Deloncle I, Dombradi Z, de France G, Gadea A, Gottardo A, Jacquot B, Jones P, Konstantinopoulos T, Kuti I, Le Blanc F, Lenzi SM, Li G, Lozeva R, Million B, Napoli DR, Navin A, Petrache CM, Pietralla N, Ralet D, Ramdhane M, Redon N, Schmitt C, Sohler D, Verney D, Barrientos D, Birkenbach B, Burrows I, Charles L, Collado J, Cullen DM, Désesquelles P, Domingo Pardo C, González V, Harkness-Brennan L, Hess H, Judson DS, Karolak M, Korten W, Labiche M, Ljungvall J, Menegazzo R, Mengoni D, Pullia A, Recchia F, Reiter P, Salsac MD, Sanchis E, Theisen C, Valiente-Dobón JJ, Zielińska M. _{36}^{96}Kr_{60}-Low-Z Boundary of the Island of Deformation at N=60. Phys Rev Lett 2017; 118:162501. [PMID: 28474951 DOI: 10.1103/physrevlett.118.162501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Indexed: 06/07/2023]
Abstract
Prompt γ-ray spectroscopy of the neutron-rich ^{96}Kr, produced in transfer- and fusion-induced fission reactions, has been performed using the combination of the Advanced Gamma Tracking Array and the VAMOS++ spectrometer. A second excited state, assigned to J^{π}=4^{+}, is observed for the first time, and a previously reported level energy of the first 2^{+} excited state is confirmed. The measured energy ratio R_{4/2}=E(4^{+})/E(2^{+})=2.12(1) indicates that this nucleus does not show a well-developed collectivity contrary to that seen in heavier N=60 isotones. This new measurement highlights an abrupt transition of the degree of collectivity as a function of the proton number at Z=36, of similar amplitude to that observed at N=60 at higher Z values. A possible reason for this abrupt transition could be related to the insufficient proton excitations in the g_{9/2}, d_{5/2}, and s_{1/2} orbitals to generate strong quadrupole correlations or to the coexistence of competing different shapes. An unexpected continuous decrease of R_{4/2} as a function of the neutron number up to N=60 is also evidenced. This measurement establishes the Kr isotopic chain as the low-Z boundary of the island of deformation for N=60 isotones. A comparison with available theoretical predictions using different beyond mean-field approaches shows that these models fail to reproduce the abrupt transitions at N=60 and Z=36.
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Affiliation(s)
- J Dudouet
- Université, Université Lyon 1, CNRS/IN2P3, IPN-Lyon, F-69622 Villeurbanne, France
| | - A Lemasson
- GANIL, CEA/DRF-CNRS/IN2P3, BP 55027, 14076 Caen cedex 5, France
| | - G Duchêne
- Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
| | - M Rejmund
- GANIL, CEA/DRF-CNRS/IN2P3, BP 55027, 14076 Caen cedex 5, France
| | - E Clément
- GANIL, CEA/DRF-CNRS/IN2P3, BP 55027, 14076 Caen cedex 5, France
| | - C Michelagnoli
- GANIL, CEA/DRF-CNRS/IN2P3, BP 55027, 14076 Caen cedex 5, France
| | - F Didierjean
- Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
| | - A Korichi
- GANIL, CEA/DRF-CNRS/IN2P3, BP 55027, 14076 Caen cedex 5, France
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay, France
| | - G Maquart
- Université, Université Lyon 1, CNRS/IN2P3, IPN-Lyon, F-69622 Villeurbanne, France
| | - O Stezowski
- Université, Université Lyon 1, CNRS/IN2P3, IPN-Lyon, F-69622 Villeurbanne, France
| | - C Lizarazo
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
- GSI, Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - R M Pérez-Vidal
- Instituto de Física Corpuscular, CSIC-Universitat de València, E-46980 Valencia, Spain
| | - C Andreoiu
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
| | - G de Angelis
- INFN, Laboratori Nazionali di Legnaro, Via Romea 4, I-35020 Legnaro, Italy
| | - A Astier
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay, France
| | - C Delafosse
- Institut de Physique Nucléaire, IN2P3-CNRS, Université Paris Sud, Université Paris Saclay, 91406 Orsay Cedex, France
| | - I Deloncle
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay, France
| | - Z Dombradi
- Institute for Nuclear Research of the Hungarian Academy of Sciences, Pf. 51, H-4001 Debrecen, Hungary
| | - G de France
- GANIL, CEA/DRF-CNRS/IN2P3, BP 55027, 14076 Caen cedex 5, France
| | - A Gadea
- Instituto de Física Corpuscular, CSIC-Universitat de València, E-46980 Valencia, Spain
| | - A Gottardo
- Institut de Physique Nucléaire, IN2P3-CNRS, Université Paris Sud, Université Paris Saclay, 91406 Orsay Cedex, France
| | - B Jacquot
- GANIL, CEA/DRF-CNRS/IN2P3, BP 55027, 14076 Caen cedex 5, France
| | - P Jones
- iThemba LABS, National Research Foundation, P.O. Box 722, Somerset West, 7129 South Africa
| | - T Konstantinopoulos
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay, France
| | - I Kuti
- Institute for Nuclear Research of the Hungarian Academy of Sciences, Pf. 51, H-4001 Debrecen, Hungary
| | - F Le Blanc
- Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
| | - S M Lenzi
- INFN Sezione di Padova, I-35131 Padova, Italy
- Dipartimento di Fisica e Astronomia dell'Università di Padova, I-35131 Padova, Italy
| | - G Li
- GSI, Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - R Lozeva
- Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay, France
| | - B Million
- INFN, Sezione di Milano, Milano 20133, Italy
| | - D R Napoli
- INFN, Laboratori Nazionali di Legnaro, Via Romea 4, I-35020 Legnaro, Italy
| | - A Navin
- GANIL, CEA/DRF-CNRS/IN2P3, BP 55027, 14076 Caen cedex 5, France
| | - C M Petrache
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay, France
| | - N Pietralla
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - D Ralet
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay, France
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - M Ramdhane
- LPSC, Université Grenoble-Alpes, CNRS/IN2P3, 38026 Grenoble Cedex, France
| | - N Redon
- Université, Université Lyon 1, CNRS/IN2P3, IPN-Lyon, F-69622 Villeurbanne, France
| | - C Schmitt
- GANIL, CEA/DRF-CNRS/IN2P3, BP 55027, 14076 Caen cedex 5, France
| | - D Sohler
- Institute for Nuclear Research of the Hungarian Academy of Sciences, Pf. 51, H-4001 Debrecen, Hungary
| | - D Verney
- Institut de Physique Nucléaire, IN2P3-CNRS, Université Paris Sud, Université Paris Saclay, 91406 Orsay Cedex, France
| | | | - B Birkenbach
- Institut für Kernphysik, Universität zu Köln, Zülpicher Strasse 77, D-50937 Köln, Germany
| | - I Burrows
- STFC Daresbury Laboratory, Daresbury, Warrington WA4 4AD, United Kingdom
| | - L Charles
- Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
| | - J Collado
- Departamento de Ingeniería Electrónica, Universitat de Valencia, 46100 Burjassot, Valencia, Spain
| | - D M Cullen
- Nuclear Physics Group, Schuster Laboratory, University of Manchester, Manchester M13 9PL, United Kingdom
| | - P Désesquelles
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay, France
| | - C Domingo Pardo
- Instituto de Física Corpuscular, CSIC-Universitat de València, E-46980 Valencia, Spain
| | - V González
- Departamento de Ingeniería Electrónica, Universitat de Valencia, 46100 Burjassot, Valencia, Spain
| | - L Harkness-Brennan
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool, L69 7ZE, United Kingdom
| | - H Hess
- Institut für Kernphysik, Universität zu Köln, Zülpicher Strasse 77, D-50937 Köln, Germany
| | - D S Judson
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool, L69 7ZE, United Kingdom
| | - M Karolak
- IRFU, CEA/DRF, Centre CEA de Saclay, F-91191 Gif-sur-Yvette Cedex, France
| | - W Korten
- IRFU, CEA/DRF, Centre CEA de Saclay, F-91191 Gif-sur-Yvette Cedex, France
| | - M Labiche
- STFC Daresbury Laboratory, Daresbury, Warrington WA4 4AD, United Kingdom
| | - J Ljungvall
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay, France
| | - R Menegazzo
- INFN Sezione di Padova, I-35131 Padova, Italy
| | - D Mengoni
- INFN Sezione di Padova, I-35131 Padova, Italy
- Dipartimento di Fisica e Astronomia dell'Università di Padova, I-35131 Padova, Italy
| | - A Pullia
- INFN, Sezione di Milano, Milano 20133, Italy
- Dipartimento di Fisica, Università di Milano, I-20133 Milano, Italy
| | - F Recchia
- INFN Sezione di Padova, I-35131 Padova, Italy
- Dipartimento di Fisica e Astronomia dell'Università di Padova, I-35131 Padova, Italy
| | - P Reiter
- Institut für Kernphysik, Universität zu Köln, Zülpicher Strasse 77, D-50937 Köln, Germany
| | - M D Salsac
- IRFU, CEA/DRF, Centre CEA de Saclay, F-91191 Gif-sur-Yvette Cedex, France
| | - E Sanchis
- Departamento de Ingeniería Electrónica, Universitat de Valencia, 46100 Burjassot, Valencia, Spain
| | - Ch Theisen
- IRFU, CEA/DRF, Centre CEA de Saclay, F-91191 Gif-sur-Yvette Cedex, France
| | - J J Valiente-Dobón
- INFN, Laboratori Nazionali di Legnaro, Via Romea 4, I-35020 Legnaro, Italy
| | - M Zielińska
- IRFU, CEA/DRF, Centre CEA de Saclay, F-91191 Gif-sur-Yvette Cedex, France
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4
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Hadyńska-Klȩk K, Napiorkowski PJ, Zielińska M, Srebrny J, Maj A, Azaiez F, Valiente Dobón JJ, Kicińska-Habior M, Nowacki F, Naïdja H, Bounthong B, Rodríguez TR, de Angelis G, Abraham T, Anil Kumar G, Bazzacco D, Bellato M, Bortolato D, Bednarczyk P, Benzoni G, Berti L, Birkenbach B, Bruyneel B, Brambilla S, Camera F, Chavas J, Cederwall B, Charles L, Ciemała M, Cocconi P, Coleman-Smith P, Colombo A, Corsi A, Crespi FCL, Cullen DM, Czermak A, Désesquelles P, Doherty DT, Dulny B, Eberth J, Farnea E, Fornal B, Franchoo S, Gadea A, Giaz A, Gottardo A, Grave X, Grȩbosz J, Görgen A, Gulmini M, Habermann T, Hess H, Isocrate R, Iwanicki J, Jaworski G, Judson DS, Jungclaus A, Karkour N, Kmiecik M, Karpiński D, Kisieliński M, Kondratyev N, Korichi A, Komorowska M, Kowalczyk M, Korten W, Krzysiek M, Lehaut G, Leoni S, Ljungvall J, Lopez-Martens A, Lunardi S, Maron G, Mazurek K, Menegazzo R, Mengoni D, Merchán E, Mȩczyński W, Michelagnoli C, Mierzejewski J, Million B, Myalski S, Napoli DR, Nicolini R, Niikura M, Obertelli A, Özmen SF, Palacz M, Próchniak L, Pullia A, Quintana B, Rampazzo G, Recchia F, Redon N, Reiter P, Rosso D, Rusek K, Sahin E, Salsac MD, Söderström PA, Stefan I, Stézowski O, Styczeń J, Theisen C, Toniolo N, Ur CA, Vandone V, Wadsworth R, Wasilewska B, Wiens A, Wood JL, Wrzosek-Lipska K, Ziȩbliński M. Superdeformed and Triaxial States in ^{42}Ca. Phys Rev Lett 2016; 117:062501. [PMID: 27541463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Indexed: 06/06/2023]
Abstract
Shape parameters of a weakly deformed ground-state band and highly deformed slightly triaxial sideband in ^{42}Ca were determined from E2 matrix elements measured in the first low-energy Coulomb excitation experiment performed with AGATA. The picture of two coexisting structures is well reproduced by new state-of-the-art large-scale shell model and beyond-mean-field calculations. Experimental evidence for superdeformation of the band built on 0_{2}^{+} has been obtained and the role of triaxiality in the A∼40 mass region is discussed. Furthermore, the potential of Coulomb excitation as a tool to study superdeformation has been demonstrated for the first time.
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Affiliation(s)
- K Hadyńska-Klȩk
- Heavy Ion Laboratory, University of Warsaw, Pasteura 5A, PL 02-093 Warsaw, Poland
- Faculty of Physics, University of Warsaw, PL 00-681 Warsaw, Poland
- Department of Physics, University of Oslo, N-0316 Oslo, Norway
| | - P J Napiorkowski
- Heavy Ion Laboratory, University of Warsaw, Pasteura 5A, PL 02-093 Warsaw, Poland
| | - M Zielińska
- Heavy Ion Laboratory, University of Warsaw, Pasteura 5A, PL 02-093 Warsaw, Poland
- CEA Saclay, IRFU/SPhN, F-91191 Gif-sur-Yvette, France
| | - J Srebrny
- Heavy Ion Laboratory, University of Warsaw, Pasteura 5A, PL 02-093 Warsaw, Poland
| | - A Maj
- Institute of Nuclear Physics, Polish Academy of Sciences, PL 31-342 Kraków, Poland
| | - F Azaiez
- Institut de Physique Nucléaire d'Orsay, F-91400 Orsay, France
| | - J J Valiente Dobón
- INFN Laboratori Nazionali di Legnaro, Viale dell'Università, 2, I-35020 Legnaro, Italy
| | | | - F Nowacki
- Université de Strasbourg, IPHC/CNRS, UMR7178, 23 rue du Loess, F-67037 Strasbourg, France
| | - H Naïdja
- Université de Strasbourg, IPHC/CNRS, UMR7178, 23 rue du Loess, F-67037 Strasbourg, France
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
- LPMS, Université Constantine 1, Route Ain-El bey, 25000 Constantine, Algeria
| | - B Bounthong
- Université de Strasbourg, IPHC/CNRS, UMR7178, 23 rue du Loess, F-67037 Strasbourg, France
| | - T R Rodríguez
- Universidad Autónoma de Madrid, Departamento de Física Teórica, E-28049 Cantoblanco, Madrid, Spain
| | - G de Angelis
- INFN Laboratori Nazionali di Legnaro, Viale dell'Università, 2, I-35020 Legnaro, Italy
| | - T Abraham
- Heavy Ion Laboratory, University of Warsaw, Pasteura 5A, PL 02-093 Warsaw, Poland
| | - G Anil Kumar
- Institute of Nuclear Physics, Polish Academy of Sciences, PL 31-342 Kraków, Poland
| | - D Bazzacco
- INFN Sezione di Padova, I-35131 Padova, Italy
- Dipartimento di Fisica e Astronomia dell'Università degli Studi di Padova, I-35131 Padova, Italy
| | - M Bellato
- INFN Sezione di Padova, I-35131 Padova, Italy
| | - D Bortolato
- INFN Sezione di Padova, I-35131 Padova, Italy
| | - P Bednarczyk
- Institute of Nuclear Physics, Polish Academy of Sciences, PL 31-342 Kraków, Poland
| | - G Benzoni
- Dipartimento di Fisica dell'Università degli Studi di Milano, I-20133 Milano, Italy
| | - L Berti
- INFN Laboratori Nazionali di Legnaro, Viale dell'Università, 2, I-35020 Legnaro, Italy
| | - B Birkenbach
- Institut für Kernphysik, Universität zu Köln, Zülpicher Straße 77, D-50937 Köln, Germany
| | - B Bruyneel
- Institut für Kernphysik, Universität zu Köln, Zülpicher Straße 77, D-50937 Köln, Germany
| | - S Brambilla
- Dipartimento di Fisica dell'Università degli Studi di Milano, I-20133 Milano, Italy
| | - F Camera
- Dipartimento di Fisica dell'Università degli Studi di Milano, I-20133 Milano, Italy
- INFN Sezione di Milano, I-20133 Milano, Italy
| | - J Chavas
- CEA Saclay, IRFU/SPhN, F-91191 Gif-sur-Yvette, France
| | - B Cederwall
- Department of Physics, Royal Institute of Technology, SE-10691 Stockholm, Sweden
| | - L Charles
- Université de Strasbourg, IPHC/CNRS, UMR7178, 23 rue du Loess, F-67037 Strasbourg, France
| | - M Ciemała
- Institute of Nuclear Physics, Polish Academy of Sciences, PL 31-342 Kraków, Poland
| | - P Cocconi
- INFN Laboratori Nazionali di Legnaro, Viale dell'Università, 2, I-35020 Legnaro, Italy
| | - P Coleman-Smith
- Daresbury Laboratory, Daresbury, Warrington WA4 4AD, United Kingdom
| | - A Colombo
- INFN Sezione di Padova, I-35131 Padova, Italy
| | - A Corsi
- Dipartimento di Fisica dell'Università degli Studi di Milano, I-20133 Milano, Italy
- INFN Sezione di Milano, I-20133 Milano, Italy
| | - F C L Crespi
- Dipartimento di Fisica dell'Università degli Studi di Milano, I-20133 Milano, Italy
- INFN Sezione di Milano, I-20133 Milano, Italy
| | - D M Cullen
- Schuster Laboratory, School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - A Czermak
- Institute of Nuclear Physics, Polish Academy of Sciences, PL 31-342 Kraków, Poland
| | - P Désesquelles
- Université Paris-Sud, F-91400 Orsay, France
- Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM/IN2P3/CNRS), F-91405 Orsay, France
| | - D T Doherty
- CEA Saclay, IRFU/SPhN, F-91191 Gif-sur-Yvette, France
- Department of Physics University of York, Heslington, York YO10 5DD, United Kingdom
| | - B Dulny
- Institute of Nuclear Physics, Polish Academy of Sciences, PL 31-342 Kraków, Poland
| | - J Eberth
- Institut für Kernphysik, Universität zu Köln, Zülpicher Straße 77, D-50937 Köln, Germany
| | - E Farnea
- INFN Sezione di Padova, I-35131 Padova, Italy
- Dipartimento di Fisica e Astronomia dell'Università degli Studi di Padova, I-35131 Padova, Italy
| | - B Fornal
- Institute of Nuclear Physics, Polish Academy of Sciences, PL 31-342 Kraków, Poland
| | - S Franchoo
- Institut de Physique Nucléaire d'Orsay, F-91400 Orsay, France
| | - A Gadea
- Instituto de Física Corpuscular IFIC, CSIC-University of Valencia, S-46980 Paterna, Valencia, Spain
| | - A Giaz
- Dipartimento di Fisica dell'Università degli Studi di Milano, I-20133 Milano, Italy
- INFN Sezione di Milano, I-20133 Milano, Italy
| | - A Gottardo
- INFN Laboratori Nazionali di Legnaro, Viale dell'Università, 2, I-35020 Legnaro, Italy
| | - X Grave
- Institut de Physique Nucléaire d'Orsay, F-91400 Orsay, France
| | - J Grȩbosz
- Institute of Nuclear Physics, Polish Academy of Sciences, PL 31-342 Kraków, Poland
| | - A Görgen
- Department of Physics, University of Oslo, N-0316 Oslo, Norway
| | - M Gulmini
- INFN Laboratori Nazionali di Legnaro, Viale dell'Università, 2, I-35020 Legnaro, Italy
| | - T Habermann
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - H Hess
- Institut für Kernphysik, Universität zu Köln, Zülpicher Straße 77, D-50937 Köln, Germany
| | - R Isocrate
- INFN Sezione di Padova, I-35131 Padova, Italy
- Dipartimento di Fisica e Astronomia dell'Università degli Studi di Padova, I-35131 Padova, Italy
| | - J Iwanicki
- Heavy Ion Laboratory, University of Warsaw, Pasteura 5A, PL 02-093 Warsaw, Poland
| | - G Jaworski
- Heavy Ion Laboratory, University of Warsaw, Pasteura 5A, PL 02-093 Warsaw, Poland
| | - D S Judson
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - A Jungclaus
- Instituto de Estructura de la Materia, CSIC, Madrid, E-28006 Madrid, Spain
| | - N Karkour
- Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM/IN2P3/CNRS), F-91405 Orsay, France
| | - M Kmiecik
- Institute of Nuclear Physics, Polish Academy of Sciences, PL 31-342 Kraków, Poland
| | - D Karpiński
- Faculty of Physics, University of Warsaw, PL 00-681 Warsaw, Poland
| | - M Kisieliński
- Heavy Ion Laboratory, University of Warsaw, Pasteura 5A, PL 02-093 Warsaw, Poland
| | - N Kondratyev
- Flerov Laboratory of Nuclear Reactions JINR, RU-141980 Dubna, Russia
| | - A Korichi
- Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM/IN2P3/CNRS), F-91405 Orsay, France
| | - M Komorowska
- Heavy Ion Laboratory, University of Warsaw, Pasteura 5A, PL 02-093 Warsaw, Poland
- Faculty of Physics, University of Warsaw, PL 00-681 Warsaw, Poland
| | - M Kowalczyk
- Heavy Ion Laboratory, University of Warsaw, Pasteura 5A, PL 02-093 Warsaw, Poland
| | - W Korten
- CEA Saclay, IRFU/SPhN, F-91191 Gif-sur-Yvette, France
| | - M Krzysiek
- Institute of Nuclear Physics, Polish Academy of Sciences, PL 31-342 Kraków, Poland
| | - G Lehaut
- Universite Lyon 1, CNRS, IN2P3, IPN Lyon, F-69622 Villeurbanne, France
| | - S Leoni
- Dipartimento di Fisica dell'Università degli Studi di Milano, I-20133 Milano, Italy
- INFN Sezione di Milano, I-20133 Milano, Italy
| | - J Ljungvall
- Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM/IN2P3/CNRS), F-91405 Orsay, France
| | - A Lopez-Martens
- Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM/IN2P3/CNRS), F-91405 Orsay, France
| | - S Lunardi
- INFN Sezione di Padova, I-35131 Padova, Italy
- Dipartimento di Fisica e Astronomia dell'Università degli Studi di Padova, I-35131 Padova, Italy
| | - G Maron
- INFN Laboratori Nazionali di Legnaro, Viale dell'Università, 2, I-35020 Legnaro, Italy
| | - K Mazurek
- Institute of Nuclear Physics, Polish Academy of Sciences, PL 31-342 Kraków, Poland
| | - R Menegazzo
- INFN Sezione di Padova, I-35131 Padova, Italy
- Dipartimento di Fisica e Astronomia dell'Università degli Studi di Padova, I-35131 Padova, Italy
| | - D Mengoni
- INFN Sezione di Padova, I-35131 Padova, Italy
| | - E Merchán
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
- Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - W Mȩczyński
- Institute of Nuclear Physics, Polish Academy of Sciences, PL 31-342 Kraków, Poland
| | - C Michelagnoli
- INFN Sezione di Padova, I-35131 Padova, Italy
- Dipartimento di Fisica e Astronomia dell'Università degli Studi di Padova, I-35131 Padova, Italy
| | - J Mierzejewski
- Heavy Ion Laboratory, University of Warsaw, Pasteura 5A, PL 02-093 Warsaw, Poland
| | - B Million
- Dipartimento di Fisica dell'Università degli Studi di Milano, I-20133 Milano, Italy
| | - S Myalski
- Institute of Nuclear Physics, Polish Academy of Sciences, PL 31-342 Kraków, Poland
| | - D R Napoli
- INFN Laboratori Nazionali di Legnaro, Viale dell'Università, 2, I-35020 Legnaro, Italy
| | - R Nicolini
- Dipartimento di Fisica dell'Università degli Studi di Milano, I-20133 Milano, Italy
| | - M Niikura
- Institut de Physique Nucléaire d'Orsay, F-91400 Orsay, France
| | - A Obertelli
- CEA Saclay, IRFU/SPhN, F-91191 Gif-sur-Yvette, France
| | - S F Özmen
- Heavy Ion Laboratory, University of Warsaw, Pasteura 5A, PL 02-093 Warsaw, Poland
| | - M Palacz
- Heavy Ion Laboratory, University of Warsaw, Pasteura 5A, PL 02-093 Warsaw, Poland
| | - L Próchniak
- Heavy Ion Laboratory, University of Warsaw, Pasteura 5A, PL 02-093 Warsaw, Poland
| | - A Pullia
- Dipartimento di Fisica dell'Università degli Studi di Milano, I-20133 Milano, Italy
- INFN Sezione di Milano, I-20133 Milano, Italy
| | - B Quintana
- Laboratorio de Radiaciones Ionizantes, Departamento de Física Fundamental, Universidad de Salamanca, E-37008 Salamanca,Spain
| | - G Rampazzo
- INFN Laboratori Nazionali di Legnaro, Viale dell'Università, 2, I-35020 Legnaro, Italy
| | - F Recchia
- INFN Sezione di Padova, I-35131 Padova, Italy
- Dipartimento di Fisica e Astronomia dell'Università degli Studi di Padova, I-35131 Padova, Italy
| | - N Redon
- Universite Lyon 1, CNRS, IN2P3, IPN Lyon, F-69622 Villeurbanne, France
| | - P Reiter
- Institut für Kernphysik, Universität zu Köln, Zülpicher Straße 77, D-50937 Köln, Germany
| | - D Rosso
- INFN Laboratori Nazionali di Legnaro, Viale dell'Università, 2, I-35020 Legnaro, Italy
| | - K Rusek
- Heavy Ion Laboratory, University of Warsaw, Pasteura 5A, PL 02-093 Warsaw, Poland
| | - E Sahin
- INFN Laboratori Nazionali di Legnaro, Viale dell'Università, 2, I-35020 Legnaro, Italy
| | - M-D Salsac
- CEA Saclay, IRFU/SPhN, F-91191 Gif-sur-Yvette, France
| | - P-A Söderström
- Department of Physics and Astronomy, Uppsala University, SE-75120 Uppsala, Sweden
| | - I Stefan
- Institut de Physique Nucléaire d'Orsay, F-91400 Orsay, France
| | - O Stézowski
- Universite Lyon 1, CNRS, IN2P3, IPN Lyon, F-69622 Villeurbanne, France
| | - J Styczeń
- Institute of Nuclear Physics, Polish Academy of Sciences, PL 31-342 Kraków, Poland
| | - Ch Theisen
- CEA Saclay, IRFU/SPhN, F-91191 Gif-sur-Yvette, France
| | - N Toniolo
- INFN Laboratori Nazionali di Legnaro, Viale dell'Università, 2, I-35020 Legnaro, Italy
| | - C A Ur
- INFN Sezione di Padova, I-35131 Padova, Italy
- Dipartimento di Fisica e Astronomia dell'Università degli Studi di Padova, I-35131 Padova, Italy
| | - V Vandone
- Dipartimento di Fisica dell'Università degli Studi di Milano, I-20133 Milano, Italy
- INFN Sezione di Milano, I-20133 Milano, Italy
| | - R Wadsworth
- Department of Physics University of York, Heslington, York YO10 5DD, United Kingdom
| | - B Wasilewska
- Institute of Nuclear Physics, Polish Academy of Sciences, PL 31-342 Kraków, Poland
| | - A Wiens
- Institut für Kernphysik, Universität zu Köln, Zülpicher Straße 77, D-50937 Köln, Germany
| | - J L Wood
- School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332-0430, USA
| | - K Wrzosek-Lipska
- Heavy Ion Laboratory, University of Warsaw, Pasteura 5A, PL 02-093 Warsaw, Poland
| | - M Ziȩbliński
- Institute of Nuclear Physics, Polish Academy of Sciences, PL 31-342 Kraków, Poland
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5
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Bucher B, Zhu S, Wu CY, Janssens RVF, Cline D, Hayes AB, Albers M, Ayangeakaa AD, Butler PA, Campbell CM, Carpenter MP, Chiara CJ, Clark JA, Crawford HL, Cromaz M, David HM, Dickerson C, Gregor ET, Harker J, Hoffman CR, Kay BP, Kondev FG, Korichi A, Lauritsen T, Macchiavelli AO, Pardo RC, Richard A, Riley MA, Savard G, Scheck M, Seweryniak D, Smith MK, Vondrasek R, Wiens A. Direct Evidence of Octupole Deformation in Neutron-Rich ^{144}Ba. Phys Rev Lett 2016; 116:112503. [PMID: 27035298 DOI: 10.1103/physrevlett.116.112503] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Indexed: 06/05/2023]
Abstract
The neutron-rich nucleus ^{144}Ba (t_{1/2}=11.5 s) is expected to exhibit some of the strongest octupole correlations among nuclei with mass numbers A less than 200. Until now, indirect evidence for such strong correlations has been inferred from observations such as enhanced E1 transitions and interleaving positive- and negative-parity levels in the ground-state band. In this experiment, the octupole strength was measured directly by sub-barrier, multistep Coulomb excitation of a post-accelerated 650-MeV ^{144}Ba beam on a 1.0-mg/cm^{2} ^{208}Pb target. The measured value of the matrix element, ⟨3_{1}^{-}∥M(E3)∥0_{1}^{+}⟩=0.65(+17/-23) eb^{3/2}, corresponds to a reduced B(E3) transition probability of 48(+25/-34) W.u. This result represents an unambiguous determination of the octupole collectivity, is larger than any available theoretical prediction, and is consistent with octupole deformation.
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Affiliation(s)
- B Bucher
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - S Zhu
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - C Y Wu
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - R V F Janssens
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - D Cline
- University of Rochester, Rochester, New York 14627, USA
| | - A B Hayes
- University of Rochester, Rochester, New York 14627, USA
| | - M Albers
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - A D Ayangeakaa
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - P A Butler
- University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - C M Campbell
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - M P Carpenter
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - C J Chiara
- Argonne National Laboratory, Argonne, Illinois 60439, USA
- University of Maryland, College Park, Maryland 20742, USA
| | - J A Clark
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | | | - M Cromaz
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - H M David
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - C Dickerson
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - E T Gregor
- University of the West of Scotland, Paisley PA1 2BE, United Kingdom
- SUPA, Scottish Universities Physics Alliance, Glasgow G12 8QQ, United Kingdom
| | - J Harker
- Argonne National Laboratory, Argonne, Illinois 60439, USA
- University of Maryland, College Park, Maryland 20742, USA
| | - C R Hoffman
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - B P Kay
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - F G Kondev
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - A Korichi
- Argonne National Laboratory, Argonne, Illinois 60439, USA
- CSNSM, IN2P3-CNRS, bâtiment 104-108, F-91405 Orsay Campus, France
| | - T Lauritsen
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - A O Macchiavelli
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - R C Pardo
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - A Richard
- Ohio University, Athens, Ohio 45701, USA
| | - M A Riley
- Florida State University, Tallahassee, Florida 32306, USA
| | - G Savard
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - M Scheck
- University of the West of Scotland, Paisley PA1 2BE, United Kingdom
- SUPA, Scottish Universities Physics Alliance, Glasgow G12 8QQ, United Kingdom
| | - D Seweryniak
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - M K Smith
- University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - R Vondrasek
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - A Wiens
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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6
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Lalović N, Perez-Vidal RM, Louchart C, Michelagnoli C, Ralet D, Arici T, Bazzacco D, Clément E, Gadea A, Gerl J, Kojouharov I, Korichi A, Labiche M, Ljungvall J, Lopez-Martens A, Nyberg J, Pietralla N, Pietri S, Rudolph D, Stezowski O. Analysis of the Response of AGATA Detectors at GSI. EPJ Web of Conferences 2015. [DOI: 10.1051/epjconf/20159307007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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7
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Wilson AN, Korichi A, Siem S, Astier A, Bazzacco D, Bednarczyk P, Bergström MH, Chmel S, Cullen DM, Davidson PM, Görgen A, Hannachi F, Hübel H, Kintz N, Lauritsen T, Lopez-Martens A, Lunardi S, Naguleswaran S, Nyakó BM, Rejmund M, Schönwasser G, Schück C, Sharpey-Schafer JF, Timar J, Wadsworth R, Libert J. Two-particle separation energy trends in the superdeformed well. Phys Rev Lett 2010; 104:162501. [PMID: 20482043 DOI: 10.1103/physrevlett.104.162501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2009] [Indexed: 05/29/2023]
Abstract
A measurement of the energy and spin of superdeformed states in 190Hg, obtained through the observation of transitions directly linking superdeformed and normal states, expands the number of isotopes in which binding energies at superdeformation are known. Comparison with neighboring nuclei shows that two-proton separation energies are higher in the superdeformed state than in the normal state, despite the lower Coulomb barrier and lower total binding energy. This unexpected result provides a critical test for nuclear models.
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Affiliation(s)
- A N Wilson
- Research School of Physics and Engineering, The Australian National University, Canberra, ACT 0200 Australia.
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8
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Wilson AN, Singh AK, Hübel H, Davidson PM, Görgen A, Rossbach D, Korichi A, Astier A, Azaiez F, Bazzacco D, Bourgeois C, Buforn N, Byrne AP, Dracoulis GD, Hannachi F, Hauschild K, Korten W, Kröll T, Lane GJ, Lopez-Martens A, Redon N, Reiter P, Rossi-Alvarez C, Schonwasser G, Stezowski O, Thirolf PG. Excitation energies of superdeformed States in 196Pb: towards a systematic study of the second well in Pb isotopes. Phys Rev Lett 2005; 95:182501. [PMID: 16383897 DOI: 10.1103/physrevlett.95.182501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2005] [Indexed: 05/05/2023]
Abstract
The excitation energy of the lowest-energy superdeformed band in 196Pb is established using the techniques of time-correlated gamma-ray spectroscopy. Together with previous measurements on 192Pb and 194Pb, this result allows superdeformed excitation energies, binding energies, and two-proton and two-neutron separation energies to be studied systematically, providing stringent tests for current nuclear models. The results are examined for evidence of a "superdeformed shell gap."
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Affiliation(s)
- A N Wilson
- Department of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, Australia.
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9
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Lauritsen T, Janssens RVF, Carpenter MP, Fallon P, Herskind B, Jenkins DG, Khoo TL, Kondev FG, Lopez-Martens A, Macchiavelli AO, Ward D, Saleem KA, Ahmad I, Clark RM, Cromaz M, Døssing T, Heinz AM, Korichi A, Lane G, Lister CJ, Seweryniak D. Octupole vibration in superdeformed 152(66)Dy86. Phys Rev Lett 2002; 89:282501. [PMID: 12513136 DOI: 10.1103/physrevlett.89.282501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2002] [Indexed: 05/24/2023]
Abstract
Nine transitions of dipole character have been identified linking an excited superdeformed (SD) band in 152Dy to the yrast SD band. As a result, the excitation energy of the lowest level in the excited SD band has been measured to be 14 238 keV. This corresponds to a 1.3 MeV excitation above the SD ground state. The levels in this band have tentatively been determined to be of negative parity and odd spin. The measured properties are consistent with an interpretation in terms of a rotational band built on a collective octupole vibration.
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Affiliation(s)
- T Lauritsen
- Argonne National Laboratory, Argonne, Illinois 60439, USA
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10
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Lauritsen T, Carpenter MP, Døssing T, Fallon P, Herskind B, Janssens RVF, Jenkins DG, Khoo TL, Kondev FG, Lopez-Martens A, Macchiavelli AO, Ward D, Abu Saleem KS, Ahmad I, Clark R, Cromaz M, Greene JP, Hannachi F, Heinz AM, Korichi A, Lane G, Lister CJ, Reiter P, Seweryniak D, Siem S, Vondrasek RC, Wiedenhöver I. Direct decay from the superdeformed band to the yrast line in 15266Dy86. Phys Rev Lett 2002; 88:042501. [PMID: 11801113 DOI: 10.1103/physrevlett.88.042501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2001] [Indexed: 05/23/2023]
Abstract
The excitation energy, spin, and parity of the yrast superdeformed band in 152Dy have been firmly established. The evidence comes mainly from the measured properties of a 4011 keV single-step transition connecting the yrast superdeformed level fed by the 693 keV transition to the 27- yrast state. Four additional, weaker, linking gamma rays have been placed as well. The excitation energy of the lowest superdeformed band member is 10 644 keV and its spin and parity are determined to be 24+.
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Affiliation(s)
- T Lauritsen
- Argonne National Laboratory, Argonne, Illinois 60439, USA
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11
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Korichi A, Wilson AN, Hannachi F, Lopez-Martens A, Rejmund M, Schück C, Vieu C, Chmel G, Görgen A, Hübel H, Rossbach D, Schönwasser S, Bergström M, Nyakó BM, Timár J, Bazzacco D, Lunardi S, Rossi-Alvarez C, Bednarczyk P, Kintz N, Naguleswaran S, Astier A, Cullen DM, Sharpey-Schafer JF, Lauritsen T, Wadsworth R. Linear polarization measurement of interband transitions in superdeformed 190hg: model-independent evidence for octupole vibrational structures. Phys Rev Lett 2001; 86:2746-2749. [PMID: 11290029 DOI: 10.1103/physrevlett.86.2746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2000] [Indexed: 05/23/2023]
Abstract
The linear polarization of gamma rays between excited and yrast superdeformed (SD) states in 190Hg was measured using the four-element CLOVER detectors of the EUROBALL IV gamma-ray spectrometer. This measurement shows in a model-independent way that the interband transitions which compete with the highly collective in-band quadrupole transitions are largely enhanced electric dipoles. Not only do these results represent the first measurement of the multipolarity of transitions between different SD states, but they also provide strong evidence for the interpretation of the structures in the SD minimum of the A approximately 190 region in terms of octupole excitations.
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Affiliation(s)
- A Korichi
- Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, IN2P3-CNRS et université Paris XI, F-91405 Orsay cedex, France
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12
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Lopez-Martens A, Hannachi F, Dossing T, Schück C, Collatz R, Gueorguieva E, Vieu C, Leoni S, Herskind B, Khoo TL, Lauritsen T, Ahmad I, Blumenthal DJ, Carpenter MP, Gassmann D, Janssens RV, Nisius D, Korichi A, Bourgeois C, Astier A, Ducroux L, Meyer M, Redon N, Sharpey-Schafer JF, Wilson AN, Korten W, Bracco A, Lucas R. Fragmentation of the Decay from the Superdeformed Yrast Band in 192Hg. Phys Rev Lett 1996; 77:1707-1710. [PMID: 10063151 DOI: 10.1103/physrevlett.77.1707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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13
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Wilson AN, Timár J, Sharpey-Schafer JF, Crowell B, Carpenter MP, Janssens RV, Blumenthal DJ, Ahmad I, Astier A, Azaiez F, Bergström M, Ducroux L, Gall BJ, Hannachi F, Khoo TL, Korichi A, Lauritsen T, Lopez-Martens A, Meyer M, Nisius D, Paul ES, Porquet MG, Redon N, Wilson JN, Nakatsukasa T. Collective and quasiparticle excitations in superdeformed 190Hg. Phys Rev C Nucl Phys 1996; 54:559-567. [PMID: 9971378 DOI: 10.1103/physrevc.54.559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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14
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Savajols H, Korichi A, Ward D, Appelbe D, Ball GC, Beausang C, Beck FA, Byrski T, Curien D, Dagnall P, Disdier D, Duchêne G, Erturk S, Finck C, Flibotte S, Gall B, Galindo-Uribarri A, Haas B, Hackman G, Janzen VP, Kharraja B, Lisle JC, Merdinger JC, Mullins SM, Pilotte S, Prévost D, Radford DC, Rauch V, Rigollet C, Smalley D, Smith MB, Stezowski O, Styczen J, Theisen C, Twin PJ, Vivien JP, Waddington JC, Zuber K, Ragnarsson I. Lifetime measurements of superdeformed bands in 148-149Gd and 152Dy: Evidence for structure-dependent elongations. Phys Rev Lett 1996; 76:4480-4483. [PMID: 10061302 DOI: 10.1103/physrevlett.76.4480] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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15
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Ducroux L, Astier A, Duffait R, Meyer M, Perries S, Redon N, Sharpey-Schafer JF, Wilson AN, Gall BJ, Collatz R, Deloncle I, Hannachi F, Lopez-Martens A, Porquet MG, Schück C, Azaiez F, Bouneau S, Bourgeois C, Korichi A, Poffé N, Sergolle H, Lucas R, Meot V, Hibbert I, Wadsworth R. Configurations of superdeformed bands in 193Pb. Phys Rev C Nucl Phys 1996; 53:2701-2708. [PMID: 9971256 DOI: 10.1103/physrevc.53.2701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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16
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Ibrahim F, Hojman D, Kreiner AJ, Roussière B, Sauvage J, Bourgeois C, Korichi A, Davidson J, Davidson M, Debray M, Deloncle I, Knipper A, Marguier G, Oms J, Perrin N, Porquet MG, Sergolle H, Somacal H. Rotational high spin structures in doubly-odd 184Au. Phys Rev C Nucl Phys 1996; 53:1547-1556. [PMID: 9971101 DOI: 10.1103/physrevc.53.1547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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17
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Khoo TL, Carpenter MP, Lauritsen T, Ackermann D, Ahmad I, Blumenthal DJ, Fischer SM, Janssens RV, Nisius D, Moore EF, Lopez-Martens A, Dossing T, Kruecken R, Asztalos SJ, Becker JA, Bernstein L, Clark RM, Deleplanque MA, Diamond RM, Fallon P, Farris LP, Hannachi F, Henry EA, Korichi A, Lee IY, Macchiavelli AO, Stephens FS. Excitation energies and spins of a superdeformed band in 194Hg from one-step discrete decays to the yrast line. Phys Rev Lett 1996; 76:1583-1586. [PMID: 10060466 DOI: 10.1103/physrevlett.76.1583] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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18
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Bouneau S, Wilson AN, Azaiez F, Sharpey-Schafer JF, Korichi A, Deloncle I, Porquet MG, Timar J, Astier A, Bergstrom M, Bourgeois C, Ducroux L, Duprat J, Gall BJ, Hannachi F, Kaci M, Lopez-Martens A, Meyer M, Paul ES, Perrin N, Pilotte S, Redon N, Riley MA, Schuck C, Sergolle H, Wyss R. The i13/2 proton intruder orbital in the superdeformed 193Tl nucleus: Effective magnetic moment and blocking of proton pairing. Phys Rev C Nucl Phys 1996; 53:R9-R13. [PMID: 9970971 DOI: 10.1103/physrevc.53.r9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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19
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Fallon P, Lauritsen T, Ahmad I, Carpenter MP, Cederwall B, Clark RM, Crowell B, Deleplanque MA, Diamond RM, Gall B, Hannachi F, Henry RG, Janssens RV, Khoo TL, Korichi A, Lee IY, Macchiavelli AO, Schuck C, Stephens FS. Quasiparticle excitations in superdeformed 192Hg. Phys Rev C Nucl Phys 1995; 51:R1609-R1612. [PMID: 9970308 DOI: 10.1103/physrevc.51.r1609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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20
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Crowell B, Carpenter MP, Janssens RV, Blumenthal DJ, Timar J, Wilson AN, Sharpey-Schafer JF, Nakatsukasa T, Ahmad I, Astier A, Azaiez F, Gall BJ, Hannachi F, Khoo TL, Korichi A, Lauritsen T, Lopez-Martens A, Meyer M, Nisius D, Paul ES, Porquet MG, Redon N. Relative spins and excitation energies of superdeformed bands in 190Hg: Further evidence for octupole vibration. Phys Rev C Nucl Phys 1995; 51:R1599-R1603. [PMID: 9970306 DOI: 10.1103/physrevc.51.r1599] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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21
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Delaroche JP, Girod M, Bastin G, Deloncle I, Hannachi F, Libert J, Porquet MG, Bourgeois C, Hojman D, Kilcher P, Korichi A, Perrin N, Roussière B, Sauvage J, Sergolle H. Evidence for gamma vibrations and shape evolutions through the transitional 184,186,188,190Hg nuclei. Phys Rev C Nucl Phys 1994; 50:2332-2345. [PMID: 9969920 DOI: 10.1103/physrevc.50.2332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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22
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Henry RG, Lauritsen T, Khoo TL, Ahmad I, Carpenter MP, Crowell B, Dossing T, Janssens RV, Hannachi F, Korichi A, Schuck C, Azaiez F, Beausang CW, Beraud R, Bourgeois C, Clark RM, Deloncle I, Duprat J, Gall B, Hubel H, Joyce MJ, Kaci M, Lecoz Y, Meyer M, Paul ES, Perrin N, Poffe N, Porquet MG, Redon N, Sergolle H, Sharpey-Schafer JF, Simpson J, Smith AG, Wadsworth R, Willsau P. Spectrum of gamma rays connecting superdeformed and normal states in 192Hg. Phys Rev Lett 1994; 73:777-781. [PMID: 10057537 DOI: 10.1103/physrevlett.73.777] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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23
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Joyce MJ, Sharpey-Schafer JF, Twin PJ, Beausang CW, Cullen DM, Riley MA, Clark RM, Dagnall PJ, Deloncle I, Duprat J, Fallon P, Forsyth PD, Fotiades N, Gale SJ, Gall B, Hannachi F, Harissopulos S, Hauschild K, Jones PM, Kalfas CA, Korichi A, Meyer M, Paul ES, Porquet MG, Redon N, Schuck C, Simpson J, Vlastou R, Wadsworth R. First measurement of magnetic properties in a superdeformed nucleus: 193Hg. Phys Rev Lett 1993; 71:2176-2179. [PMID: 10054607 DOI: 10.1103/physrevlett.71.2176] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Porquet M, Kreiner AJ, Hannachi F, Vanin V, Bastin G, Bourgeois C, Davidson J, Debray M, Falcone G, Korichi A, Mosca H, Perrin N, Sergolle H, Beck FA, Merdinger J. High-spin structure of 189Tl: Role of h9/2 protons in the prolate minimum of light Hg isotopes. Phys Rev C Nucl Phys 1991; 44:2445-2450. [PMID: 9967676 DOI: 10.1103/physrevc.44.2445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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