Production of D(*+/-)(2010) mesons in diffractive deep inelastic scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 82 pb(-1). Diffractive events were identified by the presence of a large rapidity gap in the final state. Differential cross sections have been measured in the kinematic region 1.5 < Q(2) < 200 GeV(2) 0.02 < y < 0.7, x(P) < 0.035, beta < 0.8, P(T) (D(*+/-)) > 1.5 GeV and \eta(D(*+/-))\ < 1.5. The measured cross sections are compared to theoretical predictions. The results are presented in terms of the open-charm contribution to the diffractive proton structure function. The data demonstrate a strong sensitivity to the diffractive parton densities. (C) 2003 Published by Elsevier B.V.

Measurement of the open-charm contribution to the diffractive proton structure function

MONACO, Vincenzo;SACCHI, Roberto;SOLANO, Ada Maria;
2003-01-01

Abstract

Production of D(*+/-)(2010) mesons in diffractive deep inelastic scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 82 pb(-1). Diffractive events were identified by the presence of a large rapidity gap in the final state. Differential cross sections have been measured in the kinematic region 1.5 < Q(2) < 200 GeV(2) 0.02 < y < 0.7, x(P) < 0.035, beta < 0.8, P(T) (D(*+/-)) > 1.5 GeV and \eta(D(*+/-))\ < 1.5. The measured cross sections are compared to theoretical predictions. The results are presented in terms of the open-charm contribution to the diffractive proton structure function. The data demonstrate a strong sensitivity to the diffractive parton densities. (C) 2003 Published by Elsevier B.V.
2003
672
3
35
http://dx.doi.org/10.1016/j.nuclphysb.2003.09.001
ZEUS; DEEP-INELASTIC-SCATTERING; CENTRAL TRACKING DETECTOR; ZEUS BARREL CALORIMETER; MONTE-CARLO GENERATOR; CROSS-SECTIONS; PARTON DISTRIBUTIONS; HERA; QUARK; DISSOCIATION; DIS
S. Chekanov;M. Derrick;D. Krakauer;J. H. Loizides;S. Magill;B. Musgrave;J. Repond;R. Yoshida;M. C. K.;P. Antonioli;G. Bari;M. Basile;L. B...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/105253
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