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Measurement of the inclusive D*+- production in gamma gamma collisions at LEP.

Heister, A. and ALEPH Collaboration, The and Bouhova-Thacker, Evelina and Bowdery, Christopher and Finch, Alexander and Foster, Frank and Hughes, Gareth and Jones, Roger and Smizanska, Maria (2003) Measurement of the inclusive D*+- production in gamma gamma collisions at LEP. European Physical Journal C: Particles and Fields, 28 (4). pp. 437-449. ISSN 1434-6044

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Abstract

The inclusive production of D mesons in two-photon collisions is measured with the ALEPH detector at e+e- centre-of-mass energies from 183 GeV to 209 GeV. A total of D meson events are observed from an integrated luminosity of 699pb-1. Contributions from direct and single-resolved processes are separated using the ratio of the transverse momentum of the D to the visible invariant mass Wvis of the event. Differential cross sections of D production as functions of and the pseudorapidity are measured in the range 2 GeV GeV/c and . They are compared to next-to-leading order (NLO) perturbative QCD calculations. The extrapolation of the integrated visible D cross section to the total charm cross section, based on the Pythia Monte Carlo program, yields pb .

Item Type: Article
Journal or Publication Title: European Physical Journal C: Particles and Fields
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 10530
Deposited By: Mrs Yaling Zhang
Deposited On: 17 Jul 2008 09:44
Refereed?: Yes
Published?: Published
Last Modified: 09 Apr 2014 20:17
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/10530

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