par Aktas, Adil;Favart, Laurent 
;Janssen, Xavier ;Marage, Pierre ;Roland, Benoît ; [et al.]
Référence European Physical Journal C. Particles and Fields, 50, 2, page (251)
Publication Publié, 2007
;Janssen, Xavier ;Marage, Pierre ;Roland, Benoît ; [et al.]Référence European Physical Journal C. Particles and Fields, 50, 2, page (251)
Publication Publié, 2007
Article révisé par les pairs
| Résumé : | Differential photoproduction cross sections are measured for events containing D*± mesons. The data were taken with the H1 detector at the ep collider HERA and correspond to an integrated luminosity of 51.1 pb-1. The kinematic region covers small photon virtualities Q2 < 0.01 GeV2 and photon-proton centre-of-mass energies of 171 < Wγ∈p < 256 GeV. The details of the heavy quark production process are further investigated in events with one or two jets in addition to the D*± meson. Differential cross sections for D*+jet production are determined and the correlations between the D*± meson and the jet(s) are studied. The results are compared with perturbative QCD predictions applying collinear- or kt-factorisation. © Springer-Verlag Berlin Heidelberg 2007. |
