Measurement of Inclusive and Dijet D* Meson Cross Sections in Photoproduction at HERA
Dec, 201136 pages
Published in:
- Eur.Phys.J.C 72 (2012) 1995
- Published: May 4, 2012
e-Print:
- 1203.1170 [hep-ex]
Report number:
- DESY-11-248
Experiments:
Citations per year
Abstract: (arXiv)
The inclusive photoproduction of D\ast mesons and of D\ast-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 centre-of-mass energies of 100 < Wgp < 285 GeV. Inclusive D\ast meson differential cross sections are measured for central rapidities |eta(D\ast)| < 1.5 and transverse momenta pT (D\ast) > 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\ast meson. Differential cross sections for D\ast-tagged dijet production and for correlations between the jets are measured in the range |eta(D\ast)| < 1.5 and pT (D\ast) > 2.1 GeV. The results are compared with predictions from Monte Carlo simulations and next-to-leading order perturbative QCD calculations.Note:
- Long author list - awaiting processing •
- 36 pages, 10 figures, 8 tables, submitted to EPJC
- higher-order: 1
- quantum chromodynamics: perturbation theory
- numerical calculations: Monte Carlo
- differential cross section: measured
- DESY HERA Stor
- H1
- electron p: inclusive reaction
- D*(2010): photoproduction
- D*(2010): hadronic decay
- jet: pair production
References(61)
Figures(33)