Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-08-11
Phys.Rev.Lett. 96 (2006) 012001
Physics
High Energy Physics
High Energy Physics - Phenomenology
9 pages, 8 figures
Scientific paper
10.1103/PhysRevLett.96.012001
We study the inclusive hadrodroduction of D^0, D^+, D^{*+}, and D_s^+ mesons at next-to-leading order in the parton model of quantum chromodynamics endowed with universal non-perturbative fragmentation functions (FFs) fitted to e^+e^- annihilation data from CERN LEP1. Working in the general-mass variable-flavor-number scheme, we resum the large logarithms through the evolution of the FFs and, at the same time, retain the full dependence on the charm-quark mass without additional theoretical assumptions. In this way, the cross section distributions in transverse momentum recently measured by the CDF Collaboration in run II at the Fermilab Tevatron are described within errors.
Kniehl Bernd A.
Kramer Georgiana
Schienbein Ingo
Spiesberger Hubert
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