Cross sections for elastic photoproduction of J/#psi# and #UPSILON# mesons are presented. For J/#psi# mesons the dependence on the photon-proton centre-of-mass energy W_#gamma#_p is analysed in an extended range with respect to previous measurements of 26 #<=# W_#gamma#_p #<=# 285 GeV. The measured energy dependence is parameterized as #sigma#_#gamma#_p#propor to# W_#gamma#_p"#delta# with #delta# = 0.83 #+-# 0.07. The differential cross section d#sigma#/dt for J/#psi# mesons is derived, its dependence on W_#gamma#_p and on t is analysed and the effective trajectory (in terms of Regge theory) is determined to be #alpha#(t) = (1.27 #+-# 0.05) + (0.08 #+-# 0.17) . t/GeV"2. Models based on perturbative QCD and on pomeron exchang...
Cross sections for elastic and proton-dissociative photoproduction of J/ψ mesons are measured with t...
Quasi-elastic (z 0.95) photo-production of psi' mesons has been observed at HERA for photon-proton c...
An analysis of inelastic photoproduction of J/psi mesons is presented using data collected at the ep...
Cross sections for elastic photoproduction of J/Psi and Upsilon mesons are presented. For J/Psi meso...
Cross sections for elastic photoproduction of J / ψ and ϒ mesons are presented. For J / ψ mesons the...
DESY-HERA. Measurement of the cross sections for elastic photoproduction ofJ/PSI and UPSILON mesons....
40 pages, 14 figures, 15 tables - H1Cross sections for elastic production of J/Psi mesons in photopr...
Cross sections for elastic production of J/psi mesons in photoproduction and electroproduction are m...
An analysis of the photoproduction (Q"2 < 1 GeV"2) of J/#psi# mesons at medium and, for...
Cross sections for elastic and proton-dissociative photoproduction of J/psi mesons are measured with...
The elastic photoproduction of J/psi vector mesons at large values of the photon-proton centre-of-ma...
34 pages, 6 Tables, 11 figures, submitted to EPJC - See paper for full list of authorsCross sections...
Results of J/#psi# production in ep interactions in the H1 experiment at HERA are presented. The J/#...
Cross sections for elastic and proton-dissociative photoproduction of J/ψ mesons are measured with t...
Quasi-elastic (z 0.95) photo-production of psi' mesons has been observed at HERA for photon-proton c...
An analysis of inelastic photoproduction of J/psi mesons is presented using data collected at the ep...
Cross sections for elastic photoproduction of J/Psi and Upsilon mesons are presented. For J/Psi meso...
Cross sections for elastic photoproduction of J / ψ and ϒ mesons are presented. For J / ψ mesons the...
DESY-HERA. Measurement of the cross sections for elastic photoproduction ofJ/PSI and UPSILON mesons....
40 pages, 14 figures, 15 tables - H1Cross sections for elastic production of J/Psi mesons in photopr...
Cross sections for elastic production of J/psi mesons in photoproduction and electroproduction are m...
An analysis of the photoproduction (Q"2 < 1 GeV"2) of J/#psi# mesons at medium and, for...
Cross sections for elastic and proton-dissociative photoproduction of J/psi mesons are measured with...
The elastic photoproduction of J/psi vector mesons at large values of the photon-proton centre-of-ma...
34 pages, 6 Tables, 11 figures, submitted to EPJC - See paper for full list of authorsCross sections...
Results of J/#psi# production in ep interactions in the H1 experiment at HERA are presented. The J/#...
Cross sections for elastic and proton-dissociative photoproduction of J/ψ mesons are measured with t...
Quasi-elastic (z 0.95) photo-production of psi' mesons has been observed at HERA for photon-proton c...
An analysis of inelastic photoproduction of J/psi mesons is presented using data collected at the ep...