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 $(e, e^{'} p p) n$

Abstract

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.

Authors:: 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 »« less

Publication Date:: Thu Jun 21 00:00:00 EDT 2012

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

Sponsoring Org.:: USDOE Office of Science (SC)

Contributing Org.:: CLAS Collaboration

OSTI Identifier:: 1045907

Alternate Identifier(s):: OSTI ID: 1103618

Report Number(s):: JLAB-PHY-12-1526; DOE/OR/-23177-3739
Journal ID: ISSN 0556-2813; PRVCAN; TRN: US1203690

Grant/Contract Number:: AC05-06OR23177

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review C, Nuclear Physics

Additional Journal Information:: Journal Volume: 85; Journal Issue: 6; Journal ID: ISSN 0556-2813

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; CONFIGURATION; DISTRIBUTION; EMC EFFECT; MOMENTUM TRANSFER; NEUTRONS; NUCLEAR PHYSICS; PROBABILITY; PROTONS

Citation Formats


                    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., and Zhao, B. Comparison of forward and backward pp pair knockout in 3He(e,e'pp)n.  United States: N. p., 2012. 
Web.  doi:10.1103/PhysRevC.85.064318.

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                    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. Comparison of forward and backward pp pair knockout in 3He(e,e'pp)n.  United States.  https://doi.org/10.1103/PhysRevC.85.064318

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                    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., and Zhao, B. Thu .  
"Comparison of forward and backward pp pair knockout in 3He(e,e'pp)n".  United States.  https://doi.org/10.1103/PhysRevC.85.064318.  https://www.osti.gov/servlets/purl/1045907.

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@article{osti_1045907,

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

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

  abstractNote = {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 (pp > 0.35 GeV/c) and a low momentum neutron (pn < 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.},

  doi          = {10.1103/PhysRevC.85.064318},

  journal      = {Physical Review C, Nuclear Physics},

  number       = 6,

  volume       = 85,

  place        = {United States},

  year         = {Thu Jun 21 00:00:00 EDT 2012},

  month        = {Thu Jun 21 00:00:00 EDT 2012}

}

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

Abstract

Citation Formats

Nucleon Knockout by Intermediate Energy Electrons book, January 2006

Observation of nuclear scaling in the A ( e , e ′ ) reaction at x B > 1 journal, July 2003

Measurement of Two- and Three-Nucleon Short-Range Correlation Probabilities in Nuclei journal, March 2006

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Short Range Correlations and the EMC Effect journal, February 2011

Structure functions for light nuclei journal, November 2010

Evidence for short-range correlations from high Q 2 ( e , e ’) reactions journal, November 1993

Two-Nucleon Momentum Distributions Measured in H e 3 ( e , e ′ p p ) n journal, February 2004

Tensor Correlations Measured in He 3 ( e , e ′ p p ) n journal, November 2010

n − p Short-Range Correlations from ( p , 2 p + n ) Measurements journal, January 2003

Evidence for Strong Dominance of Proton-Neutron Correlations in Nuclei journal, October 2006

Investigation of Proton-Proton Short-Range Correlations via the C 12 ( e , e ′ p p ) Reaction journal, August 2007

Probing Cold Dense Nuclear Matter journal, June 2008

Probing the origin of the EMC effect via tagged structure functions of the deuteron journal, March 1997

Electron scattering from high-momentum neutrons in deuterium journal, March 2006

The CEBAF large acceptance spectrometer (CLAS) journal, May 2003

How well do we know the electromagnetic form factors of the proton? journal, September 2003

Role of correlations in the(e3,e’2p)n reaction journal, February 1987

Three-body exchange mechanisms in the3He( γ,2p)n reaction journal, December 1988

Reaction mechanisms in two-body photodisintegration and electrodisintegration of 4He journal, October 1994

The electro-disintegration of few body systems revisited journal, March 2005

Effect of the Δ(1236) isobar on the three-nucleon bound states journal, June 1979

Parametrization of the deuteron wave function of the Paris NN potential journal, May 1981

Quasielastic He 3 ( e , e ′ p ) H 2 Reaction at Q 2 = 1.5 GeV 2 for Recoil Momenta up to 1 GeV / c journal, May 2005

Measurement of the H e 3 ( e , e ′ p ) p n Reaction at High Missing Energies and Momenta journal, March 2005

Experimental Study of Exclusive H 2 ( e , e ′ p ) n Reaction Mechanisms at High Q 2 journal, June 2007

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

Nucleon Knockout by Intermediate Energy Electrons
book, January 2006

Observation of nuclear scaling in the ${A (e, e}^{'})$ reaction at $x_{B} > 1$
journal, July 2003

Measurement of Two- and Three-Nucleon Short-Range Correlation Probabilities in Nuclei
journal, March 2006

New Measurements of High-Momentum Nucleons and Short-Range Structures in Nuclei
journal, February 2012

Short-range nucleon correlations and neutrino emission by neutron stars
conference, January 2008

Short Range Correlations and the EMC Effect
journal, February 2011

Structure functions for light nuclei
journal, November 2010

Evidence for short-range correlations from high $Q^{2}$ ( e , e ’) reactions
journal, November 1993

Two-Nucleon Momentum Distributions Measured in ${}^{3}{H e} (e, e^{'} p p) n$
journal, February 2004

Tensor Correlations Measured in ${}^{3}{He} (e, e^{'} p p) n$
journal, November 2010

$n − p$ Short-Range Correlations from ( $p, 2 p + n$ ) Measurements
journal, January 2003

Evidence for Strong Dominance of Proton-Neutron Correlations in Nuclei
journal, October 2006

Investigation of Proton-Proton Short-Range Correlations via the ${}^{12}C (e, e^{'} p p)$ Reaction
journal, August 2007

Probing Cold Dense Nuclear Matter
journal, June 2008

Probing the origin of the EMC effect via tagged structure functions of the deuteron
journal, March 1997

Electron scattering from high-momentum neutrons in deuterium
journal, March 2006

The CEBAF large acceptance spectrometer (CLAS)
journal, May 2003

How well do we know the electromagnetic form factors of the proton?
journal, September 2003

Role of correlations in the(e3,e’2p)n reaction
journal, February 1987

Three-body exchange mechanisms in the³He( γ,2p)n reaction
journal, December 1988

Reaction mechanisms in two-body photodisintegration and electrodisintegration of 4He
journal, October 1994

The electro-disintegration of few body systems revisited
journal, March 2005

Effect of the Δ(1236) isobar on the three-nucleon bound states
journal, June 1979

Parametrization of the deuteron wave function of the Paris NN potential
journal, May 1981

Quasielastic ${}^{3}{He} (e, e^{'} p) {}^{2}H$ Reaction at $Q^{2} = 1.5 {GeV}^{2}$ for Recoil Momenta up to $1 GeV / c$
journal, May 2005

Measurement of the ${}^{3}{H e} (e, e^{'} p) p n$ Reaction at High Missing Energies and Momenta
journal, March 2005

Experimental Study of Exclusive ${}^{2}H (e, e^{'} p) n$ Reaction Mechanisms at High $Q^{2}$
journal, June 2007