Comparison of forward and backward pp pair knockout in 3He(e,e'pp)n

Baghdasaryan, H.; Weinstein, L. B.; Laget, J. M.; Adhikari, K. P.; Aghasyan, M.; Amaryan, M. J.; Anghinolfi, M.; Ball, J.; Battaglieri, M.; Biselli, A. S.; Briscoe, W. J.; Brooks, W. K.; Burkert, V. D.; Carman, D. S.; Celentano, A.; Chandavar, S.; Charles, G.; Cole, P. L.; Contalbrigo, M.; Crede, V.; D’Angelo, A.; Daniel, A.; Dashyan, N.; De Sanctis, E.; De Vita, R.; Djalali, C.; Dodge, G. E.; Doughty, D.; Dupre, R.; Egiyan, H.; El Alaoui, A.; El Fassi, L.; Elouadrhiri, L.; Fedotov, G.; Gabrielyan, M. Y.; Gevorgyan, N.; Gilfoyle, G. P.; Giovanetti, K. L.; Girod, F. X.; Gohn, W.; Gothe, R. W.; Griffioen, K. A.; Guegan, B.; Guidal, M.; Hafidi, K.; Hicks, K.; Hyde, C. E.; Ireland, D. G.; Ishkhanov, B. S.; Jenkins, D.; Jo, H. S.; Joo, K.; Khandaker, M.; Khetarpal, P.; Kim, A.; Kim, W.; Kubarovsky, A.; Kubarovsky, V.; Kuhn, S. E.; Kuleshov, S. V.; Kvaltine, N. D.; Lu, H. Y.; MacGregor, I. J. D.; McKinnon, B.; Mirazita, M.; Mokeev, V.; Moutarde, H.; Munevar, E.; Niccolai, S.; Niculescu, G.; Niculescu, I.; Osipenko, M.; Paolone, M.; Pappalardo, L. L.; Paremuzyan, R.; Park, K.; Park, S.; Pisano, S.; Pozdniakov, S.; Procureur, S.; Raue, B. A.; Ricco, G.; Rimal, D.; Ripani, M.; Rosner, G.; Rossi, P.; Saini, M. S.; Saylor, N. A.; Schott, D.; Schumacher, R. A.; Seraydaryan, H.; Smith, E. S.; Sober, D. I.; Sokan, D.; Stepanyan, S. S.; Stepanyan, S.; Strauch, S.; Taiuti, M.; Tang, W.; Tkachenko, S.; Voskanyan, H.; Voutier, E.; Wood, M. H.; Zana, L.; Zhao, B.

doi:10.1103/PhysRevC.85.064318

Title: Comparison of forward and backward $p p$ pair knockout in $^{3}$ He $(e, e^{'} p p) n$

Journal Article · Thu Jun 21 00:00:00 EDT 2012 · Physical Review C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.85.064318· OSTI ID:1045907

Baghdasaryan, H.; Weinstein, L. B.; Laget, J. M.; Adhikari, K. P.; Aghasyan, M.; Amaryan, M. J.; Anghinolfi, M.; Ball, J.; Battaglieri, M.; Biselli, A. S.; Briscoe, W. J.; Brooks, W. K.; Burkert, V. D.; Carman, D. S.; Celentano, A.; Chandavar, S.; Charles, G.; Cole, P. L.; Contalbrigo, M.; Crede, V. more »

Measuring nucleon-nucleon Short Range Correlations (SRC) has been a goal of the nuclear physics community for many years. They are an important part of the nuclear wavefunction, accounting for almost all of the high-momentum strength. They are closely related to the EMC effect. While their overall probability has been measured, measuring their momentum distributions is more difficult. In order to determine the best configuration for studying SRC momentum distributions, we measured the ³He(e,e'pp)n reaction, looking at events with high momentum protons (p_p > 0.35 GeV/c) and a low momentum neutron (p_n < 0.2 GeV/c). We examined two angular configurations: either both protons emitted forward or one proton emitted forward and one backward (with respect to the momentum transfer, ^→q). Thus, the measured relative momentum distribution of the events with one forward and one backward proton was much closer to the calculated initial-state pp relative momentum distribution, indicating that this is the preferred configuration for measuring SRC.

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Research Organization:: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Contributing Organization:: CLAS Collaboration

Grant/Contract Number:: AC05-06OR23177

OSTI ID:: 1045907

Alternate ID(s):: OSTI ID: 1103618

Report Number(s):: JLAB-PHY-12-1526; DOE/OR/-23177-3739; PRVCAN; TRN: US1203690

Journal Information:: Physical Review C, Nuclear Physics, Vol. 85, Issue 6; ISSN 0556-2813

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 1 work

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