The cross section of the exclusive eta electroproduction reaction ep -> e'p'eta was measured at Jefferson Laboratorywith a 5.75 GeV electron beam and the CLAS detector. Differential cross sections d(4) sigma/dtdQ(2) dx(B)d phi(eta) and structure functions sigma(U) = sigma(T) + epsilon sigma(L), sigma(TT), and sigma(LT), as functions of t, were obtained over a wide range of Q(2) and x(B). The eta structure functions are compared with those previously measured for pi(0) at the same kinematics. At low t, both pi(0) and eta are described reasonably well by generalized parton distributions (GPDs) in which chiral-odd transversity GPDs are dominant. The pi(0) and eta data, when taken together, can facilitate the flavor decomposition of the transversity GPDs.

Bedlinskiy, I., Kubarovsky, V., Stoler, P., Adhikari, K.p., Akbar, Z., Anefalos Pereira, S., et al. (2017). Exclusive η electroproduction at W>2 GeV with CLAS and transversity generalized parton distributions. PHYSICAL REVIEW C, 95(3), 1-16 [10.1103/PhysRevC.95.035202].

Exclusive η electroproduction at W>2 GeV with CLAS and transversity generalized parton distributions

COLANERI, LUCA;D'ANGELO, ANNALISA;RIZZO, ALESSANDRO;ZONTA, IRENE
2017-03-10

Abstract

The cross section of the exclusive eta electroproduction reaction ep -> e'p'eta was measured at Jefferson Laboratorywith a 5.75 GeV electron beam and the CLAS detector. Differential cross sections d(4) sigma/dtdQ(2) dx(B)d phi(eta) and structure functions sigma(U) = sigma(T) + epsilon sigma(L), sigma(TT), and sigma(LT), as functions of t, were obtained over a wide range of Q(2) and x(B). The eta structure functions are compared with those previously measured for pi(0) at the same kinematics. At low t, both pi(0) and eta are described reasonably well by generalized parton distributions (GPDs) in which chiral-odd transversity GPDs are dominant. The pi(0) and eta data, when taken together, can facilitate the flavor decomposition of the transversity GPDs.
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/04 - Fisica Nucleare e Subnucleare
English
Con Impact Factor ISI
SCATTERING; SYSTEM
CLAS Collaboration
https://journals.aps.org/prc/pdf/10.1103/PhysRevC.95.035202
Bedlinskiy, I., Kubarovsky, V., Stoler, P., Adhikari, K.p., Akbar, Z., Anefalos Pereira, S., et al. (2017). Exclusive η electroproduction at W>2 GeV with CLAS and transversity generalized parton distributions. PHYSICAL REVIEW C, 95(3), 1-16 [10.1103/PhysRevC.95.035202].
Bedlinskiy, I; Kubarovsky, V; Stoler, P; Adhikari, K; Akbar, Z; Anefalos Pereira, S; Avakian, H; Ball, J; Baltzell, N; Battaglieri, M; Batourine, V; Biselli, A; Boiarinov, S; Briscoe, W; Burkert, V; Cao, T; Carman, D; Celentano, A; Chandavar, S; Charles, G; Ciullo, G; Clark, L; Colaneri, L; Cole, P; Contalbrigo, M; Crede, V; D'Angelo, A; Dashyan, N; De Vita, R; De Sanctis, E; Deur, A; Djalali, C; Dupre, R; Alaoui, A; Fassi, L; Elouadrhiri, L; Eugenio, P; Fanchini, E; Fedotov, G; Fersch, R; Filippi, A; Fleming, J; Forest, T; Garcon, M; Gevorgyan, N; Ghandilyan, Y; Gilfoyle, G; Giovanetti, K; Girod, F; Gleason, C; Golovatch, E; Gothe, R; Griffioen, K; Guidal, M; Guo, L; Hafidi, K; Hakobyan, H; Hanretty, C; Harrison, N; Hattawy, M; Hicks, K; Hughes, S; Hyde, C; Ilieva, Y; Ireland, D; Ishkhanov, B; Isupov, E; Jenkins, D; Jiang, H; Jo, H; Joo, K; Joosten, S; Keller, D; Khachatryan, G; Khachatryan, M; Khandaker, M; Kim, A; Kim, W; Klein, F; Kuhn, S; Kuleshov, S; Lanza, L; Lenisa, P; Livingston, K; Macgregor, I; Markov, N; Mckinnon, B; Meziani, Z; Mirazita, M; Mokeev, V; Montgomery, R; Movsisyan, A; Munoz Camacho, C; Nadel Turonski, P; Net, L; Ni, A; Niccolai, S; Niculescu, G; Osipenko, M; Ostrovidov, A; Paolone, M; Paremuzyan, R; Park, K; Pasyuk, E; Peng, P; Phelps, W; Pisano, S; Pogorelko, O; Price, J; Prok, Y; Protopopescu, D; Puckett, A; Raue, B; Ripani, M; Rizzo, A; Rosner, G; Rossi, P; Roy, P; Sabatie, F; Saini, M; Salgado, C; Schumacher, R; Sharabian, Y; Skorodumina, I; Smith, G; Sokhan, D; Sparveris, N; Stepanyan, S; Strakovsky, I; Strauch, S; Taiuti, M; Tian, Y; Torayev, B; Turisini, M; Ungaro, M; Voskanyan, H; Voutier, E; Walford, N; Watts, D; Wei, X; Weinstein, L; Wood, M; Yurov, M; Zachariou, N; Zhang, J; Zonta, I
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/181159
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