par Adloff, Catherine;Collard, Caroline ;Favart, Laurent ;Janssen, Xavier ;Marage, Pierre ; [et al.]
Référence European Physical Journal C. Particles and Fields, 25, 1, page (13-23)
Publication Publié, 2002
Article révisé par les pairs
Résumé : Dijet cross sections as functions of several jet observables are measured in photoproduction using the HI detector at HERA. The data sample comprises e+p data with an integrated luminosity of 34.9 pb-1. Jets are selected using the inclusive k⊥ algorithm with a minimum transverse energy of 25 GeV for the leading jet. The phase space covers longitudinal proton momentum fraction xp and photon longitudinal momentum fraction xγ in the ranges 0.05 < xp < 0.6 and 0.1 < xγ < 1. The predictions of next-to-leading order perturbative QCD, including recent photon and proton parton densities, are found to be compatible with the data in a wide kinematical range.