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Novario S, Gysbers P, Engel J, Hagen G, Jansen GR, Morris TD, Navrátil P, Papenbrock T, Quaglioni S. Coupled-Cluster Calculations of Neutrinoless Double-β Decay in ^{48}Ca. PHYSICAL REVIEW LETTERS 2021; 126:182502. [PMID: 34018796 DOI: 10.1103/physrevlett.126.182502] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 01/15/2021] [Accepted: 04/06/2021] [Indexed: 06/12/2023]
Abstract
We use coupled-cluster theory and nuclear interactions from chiral effective field theory to compute the nuclear matrix element for the neutrinoless double-β decay of ^{48}Ca. Benchmarks with the no-core shell model in several light nuclei inform us about the accuracy of our approach. For ^{48}Ca we find a relatively small matrix element. We also compute the nuclear matrix element for the two-neutrino double-β decay of ^{48}Ca with a quenching factor deduced from two-body currents in recent ab initio calculation of the Ikeda sum rule in ^{48}Ca [Gysbers et al., Nat. Phys. 15, 428 (2019)NPAHAX1745-247310.1038/s41567-019-0450-7].
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Affiliation(s)
- S Novario
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - P Gysbers
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - J Engel
- Department of Physics, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - G Hagen
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - G R Jansen
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- National Center for Computational Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - T D Morris
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - P Navrátil
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - T Papenbrock
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - S Quaglioni
- Lawrence Livermore National Laboratory, P.O. Box 808, L-414, Livermore, California 94551, USA
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Abstract
All existing positive results on two-neutrino double beta decay and two-neutrino double electron capture in different nuclei have been analyzed. Weighted average and recommended half-life values for 48Ca, 76Ge, 82Se, 96Zr, 100Mo, 100Mo - 100Ru (01+), 116Cd, 128Te, 130Te, 136Xe, 150Nd, 150Nd - 150Sm (01+), 238U, 78Kr, 124Xe and 130Ba have been obtained. Given the measured half-life values, effective nuclear matrix elements for all these transitions were calculated.
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Engel J, Menéndez J. Status and future of nuclear matrix elements for neutrinoless double-beta decay: a review. REPORTS ON PROGRESS IN PHYSICS. PHYSICAL SOCIETY (GREAT BRITAIN) 2017; 80:046301. [PMID: 28140335 DOI: 10.1088/1361-6633/aa5bc5] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The nuclear matrix elements that govern the rate of neutrinoless double beta decay must be accurately calculated if experiments are to reach their full potential. Theorists have been working on the problem for a long time but have recently stepped up their efforts as ton-scale experiments have begun to look feasible. Here we review past and recent work on the matrix elements in a wide variety of nuclear models and discuss work that will be done in the near future. Ab initio nuclear-structure theory, which is developing rapidly, holds out hope of more accurate matrix elements with quantifiable error bars.
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Affiliation(s)
- Jonathan Engel
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, NC 27516-3255, United States of America
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Menéndez J. Nuclear physics insights for new-physics searches using nuclei: Neutrinoless ββdecay and dark matter direct detection. EPJ WEB OF CONFERENCES 2017. [DOI: 10.1051/epjconf/201713708011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Iwata Y, Shimizu N, Otsuka T, Utsuno Y, Menéndez J, Honma M, Abe T. Large-Scale Shell-Model Analysis of the Neutrinoless ββ Decay of ^{48}Ca. PHYSICAL REVIEW LETTERS 2016; 116:112502. [PMID: 27035297 DOI: 10.1103/physrevlett.116.112502] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Indexed: 06/05/2023]
Abstract
We present the nuclear matrix element for the neutrinoless double-beta decay of ^{48}Ca based on large-scale shell-model calculations including two harmonic oscillator shells (sd and pf shells). The excitation spectra of ^{48}Ca and ^{48}Ti, and the two-neutrino double-beta decay of ^{48}Ca are reproduced in good agreement to the experimental data. We find that the neutrinoless double-beta decay nuclear matrix element is enhanced by about 30% compared to pf-shell calculations. This reduces the decay lifetime by almost a factor of 2. The matrix-element increase is mostly due to pairing correlations associated with cross-shell sd-pf excitations. We also investigate possible implications for heavier neutrinoless double-beta decay candidates.
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Affiliation(s)
- Y Iwata
- Center for Nuclear Study, The University of Tokyo, 113-0033 Tokyo, Japan
| | - N Shimizu
- Center for Nuclear Study, The University of Tokyo, 113-0033 Tokyo, Japan
| | - T Otsuka
- Center for Nuclear Study, The University of Tokyo, 113-0033 Tokyo, Japan
- Department of Physics, The University of Tokyo, 113-0033 Tokyo, Japan
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium
| | - Y Utsuno
- Center for Nuclear Study, The University of Tokyo, 113-0033 Tokyo, Japan
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, 319-1195 Ibaraki, Japan
| | - J Menéndez
- Department of Physics, The University of Tokyo, 113-0033 Tokyo, Japan
| | - M Honma
- Center for Mathematical Sciences, University of Aizu, 965-8580 Fukushima, Japan
| | - T Abe
- Department of Physics, The University of Tokyo, 113-0033 Tokyo, Japan
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Horoi M, Brown BA. Shell-model analysis of the 136Xe double beta decay nuclear matrix elements. PHYSICAL REVIEW LETTERS 2013; 110:222502. [PMID: 23767716 DOI: 10.1103/physrevlett.110.222502] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2012] [Revised: 03/18/2013] [Indexed: 06/02/2023]
Abstract
Neutrinoless double beta decay, if observed, could distinguish whether the neutrino is a Dirac or a Majorana particle, and it could be used to determine the absolute scale of the neutrino masses. 136Xe is one of the most promising candidates for observing this rare event. However, until recently there were no positive results for the allowed and less rare two-neutrino double beta decay mode. The small nuclear matrix element associated with the long half-life represents a challenge for nuclear structure models used for its calculation. We report a new shell-model analysis of the two-neutrino double beta decay of 136Xe, which takes into account all relevant nuclear orbitals necessary to fully describe the associated Gamow-Teller strength. We further use the new model to analyze the main contributions to the neutrinoless double beta decay matrix element, and show that they are also diminished.
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Affiliation(s)
- M Horoi
- Department of Physics, Central Michigan University, Mount Pleasant, Michigan 48859, USA.
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Yako K, Sasano M, Miki K, Sakai H, Dozono M, Frekers D, Greenfield MB, Hatanaka K, Ihara E, Kato M, Kawabata T, Kuboki H, Maeda Y, Matsubara H, Muto K, Noji S, Okamura H, Okabe TH, Sakaguchi S, Sakemi Y, Sasamoto Y, Sekiguchi K, Shimizu Y, Suda K, Tameshige Y, Tamii A, Uesaka T, Wakasa T, Zheng H. Gamow-Teller strength distributions in 48Sc by the 48Ca(p,n) and 48Ti(n,p) reactions and two-neutrino double-beta decay nuclear matrix elements. PHYSICAL REVIEW LETTERS 2009; 103:012503. [PMID: 19659141 DOI: 10.1103/physrevlett.103.012503] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2009] [Indexed: 05/28/2023]
Abstract
The double-differential cross sections for the 48Ca(p,n) and 48Ti(n,p) reactions were measured at 300 MeV. A multipole decomposition technique was applied to the spectra to extract the Gamow-Teller (GT) components. The integrated GT strengths up to an excitation energy of 30 MeV in 48Sc are 15.3+/-2.2 and 2.8+/-0.3 in the (p,n) and (n,p) spectra, respectively. In the (n,p) spectra additional GT strengths were found above 8 MeV where shell models within the fp shell-model space predict almost no GT strengths, suggesting that the present shell-model description of the nuclear matrix element of the two-neutrino double-beta decay is incomplete.
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Affiliation(s)
- K Yako
- Department of Physics, University of Tokyo, Bunkyo, Tokyo 113-0033, Japan
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Average and recommended half-life values for two-neutrino double-beta decay: Upgrade ’05. ACTA ACUST UNITED AC 2006. [DOI: 10.1007/s10582-006-0106-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Aunola M, Suhonen J, Siiskonen T. Competition Between Beta and Double Beta Decay in 48Ca and 96Zr. THE NUCLEUS 2000. [DOI: 10.1007/978-1-4615-4257-5_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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