par Alexa, Cǎlin;Ceccopieri, Federico ;Delvax, Julie ;Favart, Laurent ;Hreus, Tomas ;Marage, Pierre ; [et al.]
Référence European Physical Journal C. Particles and Fields, 73, 6, page (1-17)
Publication Publié, 2013
Article révisé par les pairs
Résumé : Cross sections for elastic and proton-dissociative photoproduction of J/ψ mesons are measured with the H1 detector in positron-proton collisions at HERA. The data were collected at ep centre-of-mass energies √s≈318 GeV and √s≈225 GeV, corresponding to integrated luminosities of L = 130 pb-1 and L = 10.8 pb -1, respectively. The cross sections are measured as a function of the photon-proton centre-of-mass energy in the range 25