362 articles – 2924 Notices  [english version]
 HAL : in2p3-00013448, version 1
 arXiv : hep-ex/9705014
 Zeitschrift für Physik C 75 (1997) 607-618
 Proton Dissociative $\rho$ and Elastic $\phi$ Electroproduction at HERA
 H1 Collaboration(s)
 (1997)
 The electroproduction of rho mesons with proton diffractive dissociation for Q^2 7 GeV^2 and the elastic electroproduction of Phi mesons for Q^2 6 Gev^2 are studied in e^+ p collisions at HERA with the H1 detector, for an integrated luminosity of 2.8 pb-1. The dependence of the cross sections on P_t^2 and Q^2 is measured, and the vector meson polarisation obtained. The cross section ratio between proton dissociative and elastic production of rho mesons is measured and discussed in the framework of the factorisation hypothesis of diffractive vertices. The ratio of the elastic cross section for Phi and rho meson production is investigated as a function of Q^2.
 Thème(s) : Physique/Physique des Hautes Energies - Expérience
 Lien vers le texte intégral : http://fr.arXiv.org/abs/hep-ex/9705014
 in2p3-00013448, version 1 http://hal.in2p3.fr/in2p3-00013448 oai:hal.in2p3.fr:in2p3-00013448 Contributeur : Jean-Michel Levy <> Soumis le : Mardi 9 Mai 2000, 17:51:55 Dernière modification le : Lundi 17 Juillet 2006, 09:42:30