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Measurement of D*(+/-) meson production and F-2(c) in deep- inelastic scattering at HERA

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Bunyatyan,  A.
Prof. Bogdan Povh, Emeriti, MPI for Nuclear Physics, Max Planck Society;

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Dodonov,  V.
Prof. Bogdan Povh, Emeriti, MPI for Nuclear Physics, Max Planck Society;

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Lytkin,  L.
Prof. Bogdan Povh, Emeriti, MPI for Nuclear Physics, Max Planck Society;

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Potachnikova,  I.
Prof. Bogdan Povh, Emeriti, MPI for Nuclear Physics, Max Planck Society;

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Povh,  B.
Prof. Bogdan Povh, Emeriti, MPI for Nuclear Physics, Max Planck Society;

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Weber,  M.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Citation

Adloff, C., Andreev, V., Andrieu, B., Anthonis, T., Arkadov, V., Astvatsatourov, A., et al. (2002). Measurement of D*(+/-) meson production and F-2(c) in deep- inelastic scattering at HERA. Physics Letters B, 528(3-4), 199-214.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0011-83AA-A
Abstract
The inclusive production of D*+/-(2010) mesons in deep- inelastic scattering is studied with the HI detector at HERA. In the kinematic region 1 < Q(2) < 100 GeV2 and 0.05 < y < 0.7 an e(+) p cross section for inclusive D*+/- meson production of 8.50 +/- 0.42(stat.)(-100)(+1.21)(syst.) nb is measured in the visible range p(tD*) > 1.5 GeV and \eta(D*)\ < 1.5. Single and double differential inclusive D*+/- meson cross sections are compared to perturbative QCD calculations in two different evolution schemes, The charm contribution to the proton structure, F-c(2)(x, Q(2)), is determined by extrapolating the visible charm cross section to the full phase space. This contribution is found to rise from about 10% at Q(2) = 1.5 GeV2 to more than 25% at Q(2) = 60 GeV2 corresponding to x values ranging from 5 x 10(-5) to 3 x 10(-3). (C) 2002 Elsevier Science B.V. All rights reserved.