Single and double spin asymmetries for deeply virtual Compton scattering measured with CLAS and a longitudinally polarized proton target

S. Pisano; A. Biselli; S. Niccolai; E. Seder; M. Guidal; M. Mirazita; K. P. Adhikari; D. Adikaram; M. J. Amaryan; M. D. Anderson; S. Anefalos Pereira; H. Avakian; J. Ball; M. Battaglieri; V. Batourine; I. Bedlinskiy; P. Bosted; B. Briscoe; J. Brock; W. K. Brooks; V. D. Burkert; C. Carlin; D. S. Carman; A. Celentano; S. Chandavar; G. Charles; L. Colaneri; P. L. Cole; N. Compton; M. Contalbrigo; O. Cortes; D. G. Crabb; V. Crede; A. D'Angelo; R. De Vita; E. De Sanctis; A. Deur; C. Djalali; R. Dupre; H. Egiyan; A. El Alaoui; L. El Fassi; L. Elouadrhiri; P. Eugenio; G. Fedotov; S. Fegan; R. Fersch; A. Filippi; J. A. Fleming; A. Fradi; B. Garillon; M. Garçon; Y. Ghandilyan; G. P. Gilfoyle; K. L. Giovanetti; F. X. Girod; J. T. Goetz; W. Gohn; E. Golovatch; R. W. Gothe; K. A. Griffioen; L. Guo; K. Hafidi; C. Hanretty; M. Hattawy; K. Hicks; M. Holtrop; S. M. Hughes; Y. Ilieva; D. G. Ireland; B. S. Ishkhanov; D. Jenkins; X. Jiang; H. S. Jo; K. Joo; S. Joosten; C. D. Keith; D. Keller; A. Kim; W. Kim; F. J. Klein; V. Kubarovsky; S. E. Kuhn; P. Lenisa; K. Livingston; H. Y. Lu; M. Maccormick; I. J.D. Macgregor; M. Mayer; B. McKinnon; D. G. Meekins; C. A. Meyer; V. Mokeev; R. A. Montgomery; C. I. Moody; C. Munoz Camacho; P. Nadel-Turonski; M. Osipenko; A. I. Ostrovidov; K. Park; W. Phelps; J. J. Phillips; O. Pogorelko; J. W. Price; S. Procureur; Y. Prok; A. J.R. Puckett; M. Ripani; A. Rizzo; G. Rosner; P. Rossi; P. Roy; F. Sabatié; C. Salgado; D. Schott; R. A. Schumacher; I. Skorodumina; G. D. Smith; D. I. Sober; D. Sokhan; N. Sparveris; S. Stepanyan; P. Stoler; S. Strauch; V. Sytnik; Ye Tian; S. Tkachenko; M. Turisini; M. Ungaro; E. Voutier; N. K. Walford; D. P. Watts; X. Wei; L. B. Weinstein; M. H. Wood; N. Zachariou; L. Zana; J. Zhang; Z. W. Zhao; I. Zonta

doi:10.1103/PhysRevD.91.052014

Single and double spin asymmetries for deeply virtual Compton scattering measured with CLAS and a longitudinally polarized proton target

S. Pisano, A. Biselli, S. Niccolai, E. Seder, M. Guidal, M. Mirazita, K. P. Adhikari, D. Adikaram, M. J. Amaryan, M. D. Anderson, S. Anefalos Pereira, H. Avakian, J. Ball, M. Battaglieri, V. Batourine, I. Bedlinskiy, P. Bosted, B. Briscoe, J. Brock, W. K. BrooksV. D. Burkert, C. Carlin, D. S. Carman, A. Celentano, S. Chandavar, G. Charles, L. Colaneri, P. L. Cole, N. Compton, M. Contalbrigo, O. Cortes, D. G. Crabb, V. Crede, A. D'Angelo, R. De Vita, E. De Sanctis, A. Deur, C. Djalali, R. Dupre, H. Egiyan, A. El Alaoui, L. El Fassi, L. Elouadrhiri, P. Eugenio, G. Fedotov, S. Fegan, R. Fersch, A. Filippi, J. A. Fleming, A. Fradi, B. Garillon, M. Garçon, Y. Ghandilyan, G. P. Gilfoyle, K. L. Giovanetti, F. X. Girod, J. T. Goetz, W. Gohn, E. Golovatch, R. W. Gothe, K. A. Griffioen, L. Guo, K. Hafidi, C. Hanretty, M. Hattawy, K. Hicks, M. Holtrop, S. M. Hughes, Y. Ilieva, D. G. Ireland, B. S. Ishkhanov, D. Jenkins, X. Jiang, H. S. Jo, K. Joo, S. Joosten, C. D. Keith, D. Keller, A. Kim, W. Kim, F. J. Klein, V. Kubarovsky, S. E. Kuhn, P. Lenisa, K. Livingston, H. Y. Lu, M. Maccormick, I. J.D. Macgregor, M. Mayer, B. McKinnon, D. G. Meekins, C. A. Meyer, V. Mokeev, R. A. Montgomery, C. I. Moody, C. Munoz Camacho, P. Nadel-Turonski, M. Osipenko, A. I. Ostrovidov, K. Park, W. Phelps, J. J. Phillips, O. Pogorelko, J. W. Price, S. Procureur, Y. Prok, A. J.R. Puckett, M. Ripani, A. Rizzo, G. Rosner, P. Rossi, P. Roy, F. Sabatié, C. Salgado, D. Schott, R. A. Schumacher, I. Skorodumina, G. D. Smith, D. I. Sober, D. Sokhan, N. Sparveris, S. Stepanyan, P. Stoler, S. Strauch, V. Sytnik, Ye Tian, S. Tkachenko, M. Turisini, M. Ungaro, E. Voutier, N. K. Walford, D. P. Watts, X. Wei, L. B. Weinstein, M. H. Wood, N. Zachariou, L. Zana, J. Zhang, Z. W. Zhao, I. Zonta

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Abstract

Single-beam, single-target, and double spin asymmetries for hard exclusive electroproduction of a photon on the proton e→p→→e′p′γ are presented. The data were taken at Jefferson Lab using the CEBAF large acceptance spectrometer and a longitudinally polarized NH314 target. The three asymmetries were measured in 165 four-dimensional kinematic bins, covering the widest kinematic range ever explored simultaneously for beam and target-polarization observables in the valence quark region. The kinematic dependences of the obtained asymmetries are discussed and compared to the predictions of models of generalized parton distributions. The measurement of three DVCS spin observables at the same kinematic points allows a quasi-model-independent extraction of the imaginary parts of the H and H Compton form factors, which give insight into the electric and axial charge distributions of valence quarks in the proton.

Original language	English
Article number	052014
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	91
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.91.052014
State	Published - 19 Mar 2015

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10.1103/PhysRevD.91.052014

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Pisano, S., Biselli, A., Niccolai, S., Seder, E., Guidal, M., Mirazita, M., Adhikari, K. P., Adikaram, D., Amaryan, M. J., Anderson, M. D., Anefalos Pereira, S., Avakian, H., Ball, J., Battaglieri, M., Batourine, V., Bedlinskiy, I., Bosted, P., Briscoe, B., Brock, J., ... Zonta, I. (2015). Single and double spin asymmetries for deeply virtual Compton scattering measured with CLAS and a longitudinally polarized proton target. Physical Review D - Particles, Fields, Gravitation and Cosmology, 91(5), Article 052014. https://doi.org/10.1103/PhysRevD.91.052014

@article{1daec78d2b6d4d0485b3e47d5dd2b117,

title = "Single and double spin asymmetries for deeply virtual Compton scattering measured with CLAS and a longitudinally polarized proton target",

abstract = "Single-beam, single-target, and double spin asymmetries for hard exclusive electroproduction of a photon on the proton e→p→→e′p′γ are presented. The data were taken at Jefferson Lab using the CEBAF large acceptance spectrometer and a longitudinally polarized NH314 target. The three asymmetries were measured in 165 four-dimensional kinematic bins, covering the widest kinematic range ever explored simultaneously for beam and target-polarization observables in the valence quark region. The kinematic dependences of the obtained asymmetries are discussed and compared to the predictions of models of generalized parton distributions. The measurement of three DVCS spin observables at the same kinematic points allows a quasi-model-independent extraction of the imaginary parts of the H and H Compton form factors, which give insight into the electric and axial charge distributions of valence quarks in the proton.",

author = "S. Pisano and A. Biselli and S. Niccolai and E. Seder and M. Guidal and M. Mirazita and Adhikari, {K. P.} and D. Adikaram and Amaryan, {M. J.} and Anderson, {M. D.} and {Anefalos Pereira}, S. and H. Avakian and J. Ball and M. Battaglieri and V. Batourine and I. Bedlinskiy and P. Bosted and B. Briscoe and J. Brock and Brooks, {W. K.} and Burkert, {V. D.} and C. Carlin and Carman, {D. S.} and A. Celentano and S. Chandavar and G. Charles and L. Colaneri and Cole, {P. L.} and N. Compton and M. Contalbrigo and O. Cortes and Crabb, {D. G.} and V. Crede and A. D'Angelo and {De Vita}, R. and {De Sanctis}, E. and A. Deur and C. Djalali and R. Dupre and H. Egiyan and {El Alaoui}, A. and {El Fassi}, L. and L. Elouadrhiri and P. Eugenio and G. Fedotov and S. Fegan and R. Fersch and A. Filippi and Fleming, {J. A.} and A. Fradi and B. Garillon and M. Gar{\c c}on and Y. Ghandilyan and Gilfoyle, {G. P.} and Giovanetti, {K. L.} and Girod, {F. X.} and Goetz, {J. T.} and W. Gohn and E. Golovatch and Gothe, {R. W.} and Griffioen, {K. A.} and L. Guo and K. Hafidi and C. Hanretty and M. Hattawy and K. Hicks and M. Holtrop and Hughes, {S. M.} and Y. Ilieva and Ireland, {D. G.} and Ishkhanov, {B. S.} and D. Jenkins and X. Jiang and Jo, {H. S.} and K. Joo and S. Joosten and Keith, {C. D.} and D. Keller and A. Kim and W. Kim and Klein, {F. J.} and V. Kubarovsky and Kuhn, {S. E.} and P. Lenisa and K. Livingston and Lu, {H. Y.} and M. Maccormick and Macgregor, {I. J.D.} and M. Mayer and B. McKinnon and Meekins, {D. G.} and Meyer, {C. A.} and V. Mokeev and Montgomery, {R. A.} and Moody, {C. I.} and {Munoz Camacho}, C. and P. Nadel-Turonski and M. Osipenko and Ostrovidov, {A. I.} and K. Park and W. Phelps and Phillips, {J. J.} and O. Pogorelko and Price, {J. W.} and S. Procureur and Y. Prok and Puckett, {A. J.R.} and M. Ripani and A. Rizzo and G. Rosner and P. Rossi and P. Roy and F. Sabati{\'e} and C. Salgado and D. Schott and Schumacher, {R. A.} and I. Skorodumina and Smith, {G. D.} and Sober, {D. I.} and D. Sokhan and N. Sparveris and S. Stepanyan and P. Stoler and S. Strauch and V. Sytnik and Ye Tian and S. Tkachenko and M. Turisini and M. Ungaro and E. Voutier and Walford, {N. K.} and Watts, {D. P.} and X. Wei and Weinstein, {L. B.} and Wood, {M. H.} and N. Zachariou and L. Zana and J. Zhang and Zhao, {Z. W.} and I. Zonta",

note = "Publisher Copyright: {\textcopyright} 2015 American Physical Society.",

year = "2015",

month = mar,

day = "19",

doi = "10.1103/PhysRevD.91.052014",

language = "English",

volume = "91",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "1550-7998",

publisher = "American Physical Society",

number = "5",

}

Pisano, S, Biselli, A, Niccolai, S, Seder, E, Guidal, M, Mirazita, M, Adhikari, KP, Adikaram, D, Amaryan, MJ, Anderson, MD, Anefalos Pereira, S, Avakian, H, Ball, J, Battaglieri, M, Batourine, V, Bedlinskiy, I, Bosted, P, Briscoe, B, Brock, J, Brooks, WK, Burkert, VD, Carlin, C, Carman, DS, Celentano, A, Chandavar, S, Charles, G, Colaneri, L, Cole, PL, Compton, N, Contalbrigo, M, Cortes, O, Crabb, DG, Crede, V, D'Angelo, A, De Vita, R, De Sanctis, E, Deur, A, Djalali, C, Dupre, R, Egiyan, H, El Alaoui, A, El Fassi, L, Elouadrhiri, L, Eugenio, P, Fedotov, G, Fegan, S, Fersch, R, Filippi, A, Fleming, JA, Fradi, A, Garillon, B, Garçon, M, Ghandilyan, Y, Gilfoyle, GP, Giovanetti, KL, Girod, FX, Goetz, JT, Gohn, W, Golovatch, E, Gothe, RW, Griffioen, KA, Guo, L, Hafidi, K, Hanretty, C, Hattawy, M, Hicks, K, Holtrop, M, Hughes, SM, Ilieva, Y, Ireland, DG, Ishkhanov, BS, Jenkins, D, Jiang, X, Jo, HS, Joo, K, Joosten, S, Keith, CD, Keller, D, Kim, A, Kim, W, Klein, FJ, Kubarovsky, V, Kuhn, SE, Lenisa, P, Livingston, K, Lu, HY, Maccormick, M, Macgregor, IJD, Mayer, M, McKinnon, B, Meekins, DG, Meyer, CA, Mokeev, V, Montgomery, RA, Moody, CI, Munoz Camacho, C, Nadel-Turonski, P, Osipenko, M, Ostrovidov, AI, Park, K, Phelps, W, Phillips, JJ, Pogorelko, O, Price, JW, Procureur, S, Prok, Y, Puckett, AJR, Ripani, M, Rizzo, A, Rosner, G, Rossi, P, Roy, P, Sabatié, F, Salgado, C, Schott, D, Schumacher, RA, Skorodumina, I, Smith, GD, Sober, DI, Sokhan, D, Sparveris, N, Stepanyan, S, Stoler, P, Strauch, S, Sytnik, V, Tian, Y, Tkachenko, S, Turisini, M, Ungaro, M, Voutier, E, Walford, NK, Watts, DP, Wei, X, Weinstein, LB, Wood, MH, Zachariou, N, Zana, L, Zhang, J, Zhao, ZW & Zonta, I 2015, 'Single and double spin asymmetries for deeply virtual Compton scattering measured with CLAS and a longitudinally polarized proton target', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 91, no. 5, 052014. https://doi.org/10.1103/PhysRevD.91.052014

TY - JOUR

T1 - Single and double spin asymmetries for deeply virtual Compton scattering measured with CLAS and a longitudinally polarized proton target

AU - Pisano, S.

AU - Biselli, A.

AU - Niccolai, S.

AU - Seder, E.

AU - Guidal, M.

AU - Mirazita, M.

AU - Adhikari, K. P.

AU - Adikaram, D.

AU - Amaryan, M. J.

AU - Anderson, M. D.

AU - Anefalos Pereira, S.

AU - Avakian, H.

AU - Ball, J.

AU - Battaglieri, M.

AU - Batourine, V.

AU - Bedlinskiy, I.

AU - Bosted, P.

AU - Briscoe, B.

AU - Brock, J.

AU - Brooks, W. K.

AU - Burkert, V. D.

AU - Carlin, C.

AU - Carman, D. S.

AU - Celentano, A.

AU - Chandavar, S.

AU - Charles, G.

AU - Colaneri, L.

AU - Cole, P. L.

AU - Compton, N.

AU - Contalbrigo, M.

AU - Cortes, O.

AU - Crabb, D. G.

AU - Crede, V.

AU - D'Angelo, A.

AU - De Vita, R.

AU - De Sanctis, E.

AU - Deur, A.

AU - Djalali, C.

AU - Dupre, R.

AU - Egiyan, H.

AU - El Alaoui, A.

AU - El Fassi, L.

AU - Elouadrhiri, L.

AU - Eugenio, P.

AU - Fedotov, G.

AU - Fegan, S.

AU - Fersch, R.

AU - Filippi, A.

AU - Fleming, J. A.

AU - Fradi, A.

AU - Garillon, B.

AU - Garçon, M.

AU - Ghandilyan, Y.

AU - Gilfoyle, G. P.

AU - Giovanetti, K. L.

AU - Girod, F. X.

AU - Goetz, J. T.

AU - Gohn, W.

AU - Golovatch, E.

AU - Gothe, R. W.

AU - Griffioen, K. A.

AU - Guo, L.

AU - Hafidi, K.

AU - Hanretty, C.

AU - Hattawy, M.

AU - Hicks, K.

AU - Holtrop, M.

AU - Hughes, S. M.

AU - Ilieva, Y.

AU - Ireland, D. G.

AU - Ishkhanov, B. S.

AU - Jenkins, D.

AU - Jiang, X.

AU - Jo, H. S.

AU - Joo, K.

AU - Joosten, S.

AU - Keith, C. D.

AU - Keller, D.

AU - Kim, A.

AU - Kim, W.

AU - Klein, F. J.

AU - Kubarovsky, V.

AU - Kuhn, S. E.

AU - Lenisa, P.

AU - Livingston, K.

AU - Lu, H. Y.

AU - Maccormick, M.

AU - Macgregor, I. J.D.

AU - Mayer, M.

AU - McKinnon, B.

AU - Meekins, D. G.

AU - Meyer, C. A.

AU - Mokeev, V.

AU - Montgomery, R. A.

AU - Moody, C. I.

AU - Munoz Camacho, C.

AU - Nadel-Turonski, P.

AU - Osipenko, M.

AU - Ostrovidov, A. I.

AU - Park, K.

AU - Phelps, W.

AU - Phillips, J. J.

AU - Pogorelko, O.

AU - Price, J. W.

AU - Procureur, S.

AU - Prok, Y.

AU - Puckett, A. J.R.

AU - Ripani, M.

AU - Rizzo, A.

AU - Rosner, G.

AU - Rossi, P.

AU - Roy, P.

AU - Sabatié, F.

AU - Salgado, C.

AU - Schott, D.

AU - Schumacher, R. A.

AU - Skorodumina, I.

AU - Smith, G. D.

AU - Sober, D. I.

AU - Sokhan, D.

AU - Sparveris, N.

AU - Stepanyan, S.

AU - Stoler, P.

AU - Strauch, S.

AU - Sytnik, V.

AU - Tian, Ye

AU - Tkachenko, S.

AU - Turisini, M.

AU - Ungaro, M.

AU - Voutier, E.

AU - Walford, N. K.

AU - Watts, D. P.

AU - Wei, X.

AU - Weinstein, L. B.

AU - Wood, M. H.

AU - Zachariou, N.

AU - Zana, L.

AU - Zhang, J.

AU - Zhao, Z. W.

AU - Zonta, I.

PY - 2015/3/19

Y1 - 2015/3/19

N2 - Single-beam, single-target, and double spin asymmetries for hard exclusive electroproduction of a photon on the proton e→p→→e′p′γ are presented. The data were taken at Jefferson Lab using the CEBAF large acceptance spectrometer and a longitudinally polarized NH314 target. The three asymmetries were measured in 165 four-dimensional kinematic bins, covering the widest kinematic range ever explored simultaneously for beam and target-polarization observables in the valence quark region. The kinematic dependences of the obtained asymmetries are discussed and compared to the predictions of models of generalized parton distributions. The measurement of three DVCS spin observables at the same kinematic points allows a quasi-model-independent extraction of the imaginary parts of the H and H Compton form factors, which give insight into the electric and axial charge distributions of valence quarks in the proton.

AB - Single-beam, single-target, and double spin asymmetries for hard exclusive electroproduction of a photon on the proton e→p→→e′p′γ are presented. The data were taken at Jefferson Lab using the CEBAF large acceptance spectrometer and a longitudinally polarized NH314 target. The three asymmetries were measured in 165 four-dimensional kinematic bins, covering the widest kinematic range ever explored simultaneously for beam and target-polarization observables in the valence quark region. The kinematic dependences of the obtained asymmetries are discussed and compared to the predictions of models of generalized parton distributions. The measurement of three DVCS spin observables at the same kinematic points allows a quasi-model-independent extraction of the imaginary parts of the H and H Compton form factors, which give insight into the electric and axial charge distributions of valence quarks in the proton.

UR - http://www.scopus.com/inward/record.url?scp=84927597564&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.91.052014

DO - 10.1103/PhysRevD.91.052014

M3 - Article

AN - SCOPUS:84927597564

SN - 1550-7998

VL - 91

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 5

M1 - 052014

ER -

Single and double spin asymmetries for deeply virtual Compton scattering measured with CLAS and a longitudinally polarized proton target

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