학술논문
Measurement of inclusive and dijet D* meson cross sections in photoproduction at HERA.
Document Type
Article
Author
Source
Subject
*MESONS
*PHOTONS
*PARTICLES (Nuclear physics)
*MONTE Carlo method
*QUANTUM chromodynamics
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*
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Language
ISSN
1434-6044
Abstract
The inclusive photoproduction of D " mesons and of D "-tagged dijets is investigated with the H1 detector at the ep collider HERA. The kinematic region covers small photon virtualities Q2 <2 GeV2 and photon-proton centreof- mass energies of 100 1.8 GeV. The heavy quark production process is further investigated in events with at least two jets with transverse momentum pT (jet) > 3.5 GeV each, one containing the D " meson. Differential cross sections for D "-tagged dijet production and for correlations between the jets are measured in the range ∣η(D " )∣ < 1.5 and pT (D " ) > 2.1 GeV. The results are compared with predictions from Monte Carlo simulations and next-to-leading order perturbative QCD calculations. [ABSTRACT FROM AUTHOR]