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Measurement of charm and beauty production in deep inelastic ep scattering from decays into muons at HERA

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Chekanov, S. de Favereau de Jeneret, Jérôme [UCL] Piotrzkowski, Krzysztof [UCL]

(eng) The production of charm and beauty quarks in ep interactions has been measured with the ZEUS detector at HERA for squared four-momentum exchange Q^2>20 GeV^2, using an integrated luminosity of 126 pb^{-1}. Charm and beauty quarks were identified through their decays into muons. Differential cross sections were measured for muon transverse momenta p_T^{\mu}>1.5 GeV and pseudorapidities -1.6<\eta^{\mu}<2.3, as a function of p_T^{\mu}, \eta^{\mu}, Q^2 and Bjorken x. The charm and beauty contributions to the proton structure function F_2 were also extracted. The results agree with previous measurements based on independent techniques and are well described by QCD predictions. Comment: 14 pages, 6 tables, 7 figures, accepted by EPJC

Document type Article de périodique (Journal article)
Access type Accès libre
Publication date 2010
Journal information "European Physical Journal C. Particles and Fields" - Vol. C65, p. 65-79 (2010)
Peer reviewed yes
e-issn 1434-6052
issn 1434-6044
Publication status Publié
Affiliation UCL - SC/PHYS - Département de physique
Keywords High Energy Physics - Experiment
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Bibliographic reference Chekanov, S. ; de Favereau de Jeneret, Jérôme ; Piotrzkowski, Krzysztof ; et. al. Measurement of charm and beauty production in deep inelastic ep scattering from decays into muons at HERA. In: European Physical Journal C. Particles and Fields, Vol. C65, p. 65-79 (2010)
Permanent URL http://hdl.handle.net/2078/32023