Exclusive production of rho(0) and J/psi mesons in e(+)p collisions has been studied with the ZEUS detector in the kinematic range 0.25 < Q(2) < 50 GeV2, 20 < W < 167 GeV for the rho(0) data and 2 < Q(2) < 40 GeV2, 50 < IS' < 150 GeV for the J/psi data. Cross sections for exclusive rho(0) and J/psi, production have been measured as a function of Q2, W and t. The spin-density matrix elements r(00)(04), r(1-1)(1) and Rer(10)(5) have been determined for exclusive rho(0) production as well as r(00)(04) and r(1-1)(04) for exclusive J/psi production. The results are discussed in the context of theoretical models invoking soft and hard phenomena.

Exclusive electroproduction of rho(0) and J/psi mesons at HERA / J., B., S., C., M., D., D., K., S., M., D., M., B., M., J., R., R., S., R. L., T., R., Y., H., Z., F., A., P., A., G., B., M., B., L., B., D., B., A., B., G., B., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 6:(1999), pp. 603-627. [10.1007/s100520050369]

Exclusive electroproduction of rho(0) and J/psi mesons at HERA

D'AGOSTINI, Giulio;NIGRO, Andrea;
1999

Abstract

Exclusive production of rho(0) and J/psi mesons in e(+)p collisions has been studied with the ZEUS detector in the kinematic range 0.25 < Q(2) < 50 GeV2, 20 < W < 167 GeV for the rho(0) data and 2 < Q(2) < 40 GeV2, 50 < IS' < 150 GeV for the J/psi data. Cross sections for exclusive rho(0) and J/psi, production have been measured as a function of Q2, W and t. The spin-density matrix elements r(00)(04), r(1-1)(1) and Rer(10)(5) have been determined for exclusive rho(0) production as well as r(00)(04) and r(1-1)(04) for exclusive J/psi production. The results are discussed in the context of theoretical models invoking soft and hard phenomena.
1999
01 Pubblicazione su rivista::01a Articolo in rivista
Exclusive electroproduction of rho(0) and J/psi mesons at HERA / J., B., S., C., M., D., D., K., S., M., D., M., B., M., J., R., R., S., R. L., T., R., Y., H., Z., F., A., P., A., G., B., M., B., L., B., D., B., A., B., G., B., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 6:(1999), pp. 603-627. [10.1007/s100520050369]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/496881
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