Probing the repulsive core of the nucleon-nucleon interaction via the (4)He(e,e'pN) triple-coincidence reaction

I Korover¹, N Muangma², O Hen¹, R Shneor¹, V Sulkosky³, A Kelleher², S Gilad², D W Higinbotham⁴, E Piasetzky¹, J W Watson⁵, S A Wood⁴, P Aguilera⁶, Z Ahmed⁷, H Albataineh⁸, K Allada⁹, B Anderson⁵, D Anez¹⁰, K Aniol¹¹, J Annand¹², W Armstrong¹³, J Arrington¹⁴, T Averett¹⁵, T Badman¹⁶, H Baghdasaryan¹⁷, X Bai¹⁸, A Beck¹⁹, S Beck¹⁹, V Bellini²⁰, F Benmokhtar²¹, W Bertozzi², J Bittner²², W Boeglin²³, A Camsonne⁴, C Chen²⁴, J-P Chen⁴, K Chirapatpimol¹⁷, E Cisbani²⁵, M M Dalton¹⁷, A Daniel²⁶, D Day¹⁷, C W de Jager²⁷, R De Leo²⁸, W Deconinck², M Defurne²⁹, D Flay¹³, N Fomin³⁰, M Friend²¹, S Frullani²⁵, E Fuchey¹³, F Garibaldi²⁵, D Gaskell⁴, R Gilman³¹, O Glamazdin³², C Gu³³, P Gueye²⁴, D Hamilton¹², C Hanretty³⁴, J-O Hansen⁴, M Hashemi Shabestari¹⁷, T Holmstrom²², M Huang³⁵, S Iqbal¹¹, G Jin¹⁷, N Kalantarians³⁶, H Kang³⁷, M Khandaker⁴, J LeRose⁴, J Leckey³⁸, R Lindgren¹⁷, E Long¹⁶, J Mammei³⁹, D J Margaziotis¹¹, P Markowitz²³, A Marti Jimenez-Arguello⁴⁰, D Meekins⁴, Z Meziani¹³, R Michaels⁴, M Mihovilovic⁴¹, P Monaghan⁴², C Munoz Camacho⁴⁰, B Norum¹⁷, Nuruzzaman⁴³, K Pan², S Phillips¹⁶, I Pomerantz⁴⁴, M Posik¹³, V Punjabi⁴⁵, X Qian³⁵, Y Qiang³⁵, X Qiu⁴⁶, A Rakhman⁷, P E Reimer¹⁴, S Riordan⁴⁷, G Ron⁴⁸, O Rondon-Aramayo⁴, A Saha⁴, E Schulte⁴⁹, L Selvy⁵, A Shahinyan⁵⁰, S Sirca⁵¹, J Sjoegren¹², K Slifer¹⁶, P Solvignon⁴, N Sparveris¹³, R Subedi¹⁷, W Tireman⁵², D Wang¹⁷, L B Weinstein⁸, B Wojtsekhowski⁴, W Yan⁵³, I Yaron¹, Z Ye¹⁷, X Zhan², J Zhang⁴, Y Zhang⁴⁹, B Zhao¹⁵, Z Zhao¹⁷, X Zheng¹⁷, P Zhu⁵³, R Zielinski¹⁶; Jefferson Lab Hall A Collaboration

Affiliations

¹ Tel Aviv University, Tel Aviv 69978, Israel.
² Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
³ Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA and Longwood University, Farmville, Virginia 23909, USA.
⁴ Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
⁵ Kent State University, Kent, Ohio 44242, USA.
⁶ Institut de Physique Nucléaire (UMR 8608), CNRS/IN2P3-Université Paris-Sud, F-91406 Orsay Cedex, France.
⁷ Syracuse University, Syracuse, New York 13244, USA.
⁸ Old Dominion University, Norfolk, Virginia 23529, USA.
⁹ University of Kentucky, Lexington, Kentucky 40506, USA.
¹⁰ Saint Mary's University, Halifax, Nova Scotia, Canada.
¹¹ California State University, Los Angeles, Los Angeles, California 90032, USA.
¹² University of Glasgow, Glasgow G12 8QQ, Scotland, United Kingdom.
¹³ Temple University, Philadelphia, Pennsylvania 19122, USA.
¹⁴ Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
¹⁵ College of William and Mary, Williamsburg, Virginia 23187, USA.
¹⁶ University of New Hampshire, Durham, New Hampshire 03824, USA.
¹⁷ University of Virginia, Charlottesville, Virginia 22904, USA.
¹⁸ China Institute of Atomic Energy, Beijing, China.
¹⁹ Nuclear Research Center Negev, Beer-Sheva, Israel.
²⁰ Universita di Catania, Catania, Italy.
²¹ Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
²² Longwood University, Farmville, Virginia 23909, USA.
²³ Florida International University, Miami, Florida 33199, USA.
²⁴ Hampton University, Hampton, Virginia 23668, USA.
²⁵ INFN, Sezione Sanità and Istituto Superiore di Sanità, 00161 Rome, Italy.
²⁶ Ohio University, Athens, Ohio 45701, USA.
²⁷ Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and University of Virginia, Charlottesville, Virginia 22904, USA.
²⁸ INFN, Sezione di Bari and University of Bari, I-70126 Bari, Italy.
²⁹ CEA Saclay, F-91191 Gif-sur-Yvette, France.
³⁰ University of Tennessee, Knoxville, Tennessee 37996, USA.
³¹ Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA.
³² Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine.
³³ Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
³⁴ Florida State University, Tallahassee, Florida 32306, USA.
³⁵ Duke University, Durham, North Carolina 27708, USA.
³⁶ University of Texas, Houston, Texas 77030, USA.
³⁷ Seoul National University, Seoul, Korea.
³⁸ Indiana University, Bloomington, Indiana 47405, USA.
³⁹ Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA.
⁴⁰ Université Blaise Pascal/IN2P3, F-63177 Aubière, France.
⁴¹ Jozef Stefan Institute, Ljubljana, Slovenia.
⁴² Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA and Hampton University, Hampton, Virginia 23668, USA.
⁴³ Mississippi State University, Mississippi State, Mississippi 39762, USA.
⁴⁴ Tel Aviv University, Tel Aviv 69978, Israel and The University of Texas at Austin, Austin, Texas 78712, USA.
⁴⁵ Norfolk State University, Norfolk, Virginia 23504, USA.
⁴⁶ Lanzhou University, Lanzhou, China.
⁴⁷ University of Virginia, Charlottesville, Virginia 22904, USA and University of Massachusetts, Amherst, Massachusetts 01006, USA.
⁴⁸ Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem, Israel.
⁴⁹ Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA.
⁵⁰ Yerevan Physics Institute, Yerevan 375036, Armenia.
⁵¹ University of Ljubljana, Ljubljana, Slovenia.
⁵² Northern Michigan University, Marquette, Michigan 49855, USA.
⁵³ University of Science and Technology, Hefei, China.

PMID: 25062168
DOI: 10.1103/PhysRevLett.113.022501

Probing the repulsive core of the nucleon-nucleon interaction via the (4)He(e,e'pN) triple-coincidence reaction

I Korover et al. Phys Rev Lett. 2014.

. 2014 Jul 11;113(2):022501.

doi: 10.1103/PhysRevLett.113.022501. Epub 2014 Jul 9.

Authors

Affiliations

¹ Tel Aviv University, Tel Aviv 69978, Israel.
² Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
³ Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA and Longwood University, Farmville, Virginia 23909, USA.
⁴ Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
⁵ Kent State University, Kent, Ohio 44242, USA.
⁶ Institut de Physique Nucléaire (UMR 8608), CNRS/IN2P3-Université Paris-Sud, F-91406 Orsay Cedex, France.
⁷ Syracuse University, Syracuse, New York 13244, USA.
⁸ Old Dominion University, Norfolk, Virginia 23529, USA.
⁹ University of Kentucky, Lexington, Kentucky 40506, USA.
¹⁰ Saint Mary's University, Halifax, Nova Scotia, Canada.
¹¹ California State University, Los Angeles, Los Angeles, California 90032, USA.
¹² University of Glasgow, Glasgow G12 8QQ, Scotland, United Kingdom.
¹³ Temple University, Philadelphia, Pennsylvania 19122, USA.
¹⁴ Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
¹⁵ College of William and Mary, Williamsburg, Virginia 23187, USA.
¹⁶ University of New Hampshire, Durham, New Hampshire 03824, USA.
¹⁷ University of Virginia, Charlottesville, Virginia 22904, USA.
¹⁸ China Institute of Atomic Energy, Beijing, China.
¹⁹ Nuclear Research Center Negev, Beer-Sheva, Israel.
²⁰ Universita di Catania, Catania, Italy.
²¹ Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
²² Longwood University, Farmville, Virginia 23909, USA.
²³ Florida International University, Miami, Florida 33199, USA.
²⁴ Hampton University, Hampton, Virginia 23668, USA.
²⁵ INFN, Sezione Sanità and Istituto Superiore di Sanità, 00161 Rome, Italy.
²⁶ Ohio University, Athens, Ohio 45701, USA.
²⁷ Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and University of Virginia, Charlottesville, Virginia 22904, USA.
²⁸ INFN, Sezione di Bari and University of Bari, I-70126 Bari, Italy.
²⁹ CEA Saclay, F-91191 Gif-sur-Yvette, France.
³⁰ University of Tennessee, Knoxville, Tennessee 37996, USA.
³¹ Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA.
³² Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine.
³³ Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
³⁴ Florida State University, Tallahassee, Florida 32306, USA.
³⁵ Duke University, Durham, North Carolina 27708, USA.
³⁶ University of Texas, Houston, Texas 77030, USA.
³⁷ Seoul National University, Seoul, Korea.
³⁸ Indiana University, Bloomington, Indiana 47405, USA.
³⁹ Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA.
⁴⁰ Université Blaise Pascal/IN2P3, F-63177 Aubière, France.
⁴¹ Jozef Stefan Institute, Ljubljana, Slovenia.
⁴² Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA and Hampton University, Hampton, Virginia 23668, USA.
⁴³ Mississippi State University, Mississippi State, Mississippi 39762, USA.
⁴⁴ Tel Aviv University, Tel Aviv 69978, Israel and The University of Texas at Austin, Austin, Texas 78712, USA.
⁴⁵ Norfolk State University, Norfolk, Virginia 23504, USA.
⁴⁶ Lanzhou University, Lanzhou, China.
⁴⁷ University of Virginia, Charlottesville, Virginia 22904, USA and University of Massachusetts, Amherst, Massachusetts 01006, USA.
⁴⁸ Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem, Israel.
⁴⁹ Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA.
⁵⁰ Yerevan Physics Institute, Yerevan 375036, Armenia.
⁵¹ University of Ljubljana, Ljubljana, Slovenia.
⁵² Northern Michigan University, Marquette, Michigan 49855, USA.
⁵³ University of Science and Technology, Hefei, China.

PMID: 25062168
DOI: 10.1103/PhysRevLett.113.022501

Abstract

We studied simultaneously the (4)He(e,e'p), (4)He(e,e'pp), and (4)He(e,e'pn) reactions at Q(2)=2(GeV/c)(2) and x(B)>1, for an (e,e'p) missing-momentum range of 400 to 830 MeV/c. The knocked-out proton was detected in coincidence with a proton or neutron recoiling almost back to back to the missing momentum, leaving the residual A=2 system at low excitation energy. These data were used to identify two-nucleon short-range correlated pairs and to deduce their isospin structure as a function of missing momentum, in a region where the nucleon-nucleon (NN) force is expected to change from predominantly tensor to repulsive. The abundance of neutron-proton pairs is reduced as the nucleon momentum increases beyond ∼500 MeV/c. The extracted fraction of proton-proton pairs is small and almost independent of the missing momentum. Our data are compared with calculations of two-nucleon momentum distributions in (4)He and discussed in the context of probing the elusive repulsive component of the NN force.

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Probing the repulsive core of the nucleon-nucleon interaction via the (4)He(e,e'pN) triple-coincidence reaction

Affiliations

Probing the repulsive core of the nucleon-nucleon interaction via the (4)He(e,e'pN) triple-coincidence reaction

Authors

Affiliations

Abstract

LinkOut - more resources

Miscellaneous