2
|
Yero C, Abrams D, Ahmed Z, Ahmidouch A, Aljawrneh B, Alsalmi S, Ambrose R, Armstrong W, Asaturyan A, Assumin-Gyimah K, Ayerbe Gayoso C, Bandari A, Bane J, Basnet S, Berdnikov VV, Bericic J, Bhatt H, Bhetuwal D, Biswas D, Boeglin WU, Bosted P, Brash E, Bukhari MHS, Chen H, Chen JP, Chen M, Christy ME, Covrig S, Craycraft K, Danagoulian S, Day D, Diefenthaler M, Dlamini M, Dunne J, Duran B, Dutta D, Ent R, Evans R, Fenker H, Fomin N, Fuchey E, Gaskell D, Gautam TN, Gonzalez FA, Hansen JO, Hauenstein F, Hernandez AV, Horn T, Huber GM, Jones MK, Joosten S, Kabir ML, Karki A, Keppel CE, Khanal A, King P, Kinney E, Lashley-Colthirst N, Li S, Li WB, Liyanage AH, Mack DJ, Malace SP, Matter J, Meekins D, Michaels R, Mkrtchyan A, Mkrtchyan H, Nazeer SJ, Nanda S, Niculescu G, Niculescu M, Nguyen D, Nuruzzaman N, Pandey B, Park S, Perdrisat CF, Pooser E, Rehfuss M, Reinhold J, Sawatzky B, Smith GR, Sun A, Szumila-Vance H, Tadevosyan V, Wood SA, Zhang J. Probing the Deuteron at Very Large Internal Momenta. PHYSICAL REVIEW LETTERS 2020; 125:262501. [PMID: 33449750 DOI: 10.1103/physrevlett.125.262501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/27/2020] [Accepted: 12/02/2020] [Indexed: 06/12/2023]
Abstract
We measure ^{2}H(e,e^{'}p)n cross sections at 4-momentum transfers of Q^{2}=4.5±0.5 (GeV/c)^{2} over a range of neutron recoil momenta p_{r}, reaching up to ∼1.0 GeV/c. We obtain data at fixed neutron recoil angles θ_{nq}=35°, 45°, and 75° with respect to the 3-momentum transfer q[over →]. The new data agree well with previous data, which reached p_{r}∼500 MeV/c. At θ_{nq}=35° and 45°, final state interactions, meson exchange currents, and isobar currents are suppressed and the plane wave impulse approximation provides the dominant cross section contribution. We compare the new data to recent theoretical calculations, where we observe a significant discrepancy for recoil momenta p_{r}>700 MeV/c.
Collapse
Affiliation(s)
- C Yero
- Florida International University, University Park, Florida 33199, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D Abrams
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - Z Ahmed
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - A Ahmidouch
- North Carolina Agricultural and Technical State University, Greensboro, North Carolina 27411, USA
| | - B Aljawrneh
- North Carolina Agricultural and Technical State University, Greensboro, North Carolina 27411, USA
| | - S Alsalmi
- Kent State University, Kent, Ohio 44240, USA
| | - R Ambrose
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - W Armstrong
- Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - A Asaturyan
- A.I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), 2 Alikhanian Brothers Street, 0036, Yerevan, Armenia
| | - K Assumin-Gyimah
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - C Ayerbe Gayoso
- College of William & Mary, Williamsburg, Virginia 23185, USA
| | - A Bandari
- College of William & Mary, Williamsburg, Virginia 23185, USA
| | - J Bane
- University of Tennessee, Knoxville, Tennessee 37996, USA
| | - S Basnet
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - V V Berdnikov
- Catholic University of America, Washington, D.C. 20064, USA
| | - J Bericic
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - H Bhatt
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - D Bhetuwal
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - D Biswas
- Hampton University, Hampton, Virginia 23669, USA
| | - W U Boeglin
- Florida International University, University Park, Florida 33199, USA
| | - P Bosted
- College of William & Mary, Williamsburg, Virginia 23185, USA
| | - E Brash
- Christopher Newport University, Newport News, Virginia 23606, USA
| | | | - H Chen
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - J P Chen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Chen
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - M E Christy
- Hampton University, Hampton, Virginia 23669, USA
| | - S Covrig
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K Craycraft
- University of Tennessee, Knoxville, Tennessee 37996, USA
| | - S Danagoulian
- North Carolina Agricultural and Technical State University, Greensboro, North Carolina 27411, USA
| | - D Day
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - M Diefenthaler
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Dlamini
- Ohio University, Athens, Ohio 45701, USA
| | - J Dunne
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - B Duran
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - D Dutta
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - R Ent
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Evans
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - H Fenker
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - N Fomin
- University of Tennessee, Knoxville, Tennessee 37996, USA
| | - E Fuchey
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - D Gaskell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T N Gautam
- Hampton University, Hampton, Virginia 23669, USA
| | - F A Gonzalez
- Stony Brook University, Stony Brook, New York 11794, USA
| | - J O Hansen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - F Hauenstein
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - A V Hernandez
- Catholic University of America, Washington, D.C. 20064, USA
| | - T Horn
- Catholic University of America, Washington, D.C. 20064, USA
| | - G M Huber
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - M K Jones
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Joosten
- Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - M L Kabir
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - A Karki
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - C E Keppel
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Khanal
- Florida International University, University Park, Florida 33199, USA
| | - P King
- Ohio University, Athens, Ohio 45701, USA
| | - E Kinney
- University of Colorado Boulder, Boulder, Colorado 80309, USA
| | | | - S Li
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - W B Li
- College of William & Mary, Williamsburg, Virginia 23185, USA
| | - A H Liyanage
- Hampton University, Hampton, Virginia 23669, USA
| | - D J Mack
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S P Malace
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Matter
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - D Meekins
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Mkrtchyan
- A.I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), 2 Alikhanian Brothers Street, 0036, Yerevan, Armenia
| | - H Mkrtchyan
- A.I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), 2 Alikhanian Brothers Street, 0036, Yerevan, Armenia
| | - S J Nazeer
- Hampton University, Hampton, Virginia 23669, USA
| | - S Nanda
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - G Niculescu
- James Madison University, Harrisonburg, Virginia 22807, USA
| | - M Niculescu
- James Madison University, Harrisonburg, Virginia 22807, USA
| | - D Nguyen
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - N Nuruzzaman
- Rutgers University, New Brunswick, New Jersey 08854, USA
| | - B Pandey
- Hampton University, Hampton, Virginia 23669, USA
| | - S Park
- Stony Brook University, Stony Brook, New York 11794, USA
| | - C F Perdrisat
- College of William & Mary, Williamsburg, Virginia 23185, USA
| | - E Pooser
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Rehfuss
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - J Reinhold
- Florida International University, University Park, Florida 33199, USA
| | - B Sawatzky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - G R Smith
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Sun
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - H Szumila-Vance
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - V Tadevosyan
- A.I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), 2 Alikhanian Brothers Street, 0036, Yerevan, Armenia
| | - S A Wood
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Zhang
- Stony Brook University, Stony Brook, New York 11794, USA
| |
Collapse
|
4
|
Boeglin WU, Coman L, Ambrozewicz P, Aniol K, Arrington J, Batigne G, Bosted P, Camsonne A, Chang G, Chen JP, Choi S, Deur A, Epstein M, Finn JM, Frullani S, Furget C, Garibaldi F, Gayou O, Gilman R, Hansen O, Hayes D, Higinbotham DW, Hinton W, Hyde C, Ibrahim H, de Jager CW, Jiang X, Jones MK, Kaufman LJ, Klein A, Kox S, Kramer L, Kumbartzki G, Laget JM, LeRose J, Lindgren R, Margaziotis DJ, Markowitz P, McCormick K, Meziani Z, Michaels R, Milbrath B, Mitchell J, Monaghan P, Moteabbed M, Moussiegt P, Nasseripour R, Paschke K, Perdrisat C, Piasetzky E, Punjabi V, Qattan IA, Quéméner G, Ransome RD, Raue B, Réal JS, Reinhold J, Reitz B, Roché R, Roedelbronn M, Saha A, Slifer K, Solvignon P, Sulkosky V, Ulmer PE, Voutier E, Weinstein LB, Wojtsekhowski B, Zeier M. Probing the high momentum component of the deuteron at high Q2. PHYSICAL REVIEW LETTERS 2011; 107:262501. [PMID: 22243152 DOI: 10.1103/physrevlett.107.262501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Indexed: 05/31/2023]
Abstract
The (2)H(e,e'p)n cross section at a momentum transfer of 3.5 (GeV/c)(2) was measured over a kinematical range that made it possible to study this reaction for a set of fixed missing momenta as a function of the neutron recoil angle θ(nq) and to extract missing momentum distributions for fixed values of θ(nq) up to 0.55 GeV/c. In the region of 35°≤θ(nq)≤45° recent calculations, which predict that final-state interactions are small, agree reasonably well with the experimental data. Therefore, these experimental reduced cross sections provide direct access to the high momentum component of the deuteron momentum distribution in exclusive deuteron electrodisintegration.
Collapse
Affiliation(s)
- W U Boeglin
- Florida International University, University Park, Florida 33199, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|