Abstract
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.
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Aktas, A., Andreev, V., Anthonis, T. et al. Inclusive D*± meson cross sections and D*±-jet correlations in photoproduction at HERA. Eur. Phys. J. C 50, 251–267 (2007). https://doi.org/10.1140/epjc/s10052-007-0220-z
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DOI: https://doi.org/10.1140/epjc/s10052-007-0220-z