학술논문
Inclusive D*± meson cross sections and D*± -jet correlations in photoproduction at HERA.
Document Type
Article
Author
Source
Subject
*MESONS
*COLLIDERS (Nuclear physics)
*KINEMATICS
*PHOTONS
*QUARKS
*QUANTUM chromodynamics
*PAIRING correlations (Nuclear physics)
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Language
ISSN
1434-6044
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. [ABSTRACT FROM AUTHOR]