Measurement of D0, D+, D+(s) and D*+ Production in Fixed Target 920-GeV Proton-Nucleus Collisions.

BY HERA-B COLLABORATION (I. ABT ET AL.). AND H. WAHLBERG

EUROPEAN PHYSICAL JOURNAL C - PARTICLES AND FIELDS

Año: 2007 vol. 52 p. 531 - 542

1434-6044

The inclusive production cross sections of the charmed mesons D^0, D^+, D_s^+ and D^{*+} have been measured in interactions of 920 GeV protons on C, Ti, and W targets with the HERA-B detector at the HERA storage ring. Differential cross sections as a function of transverse momentum and Feynman's x variable are given for the central rapidity region and for transverse momenta up to $\pT=3.5$ GeV/$c$. The atomic mass number dependence and the leading to non-leading particle production asymmetries are presented as well.