Reconciling open charm production at the Fermilab Tevatron with QCD

Abstract

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.

9 pages, 8 figures

References in corpus (4)

• Physical Gluons and High $E_T$ Jets
• Inclusive D^{*+-} Production in p p-bar Collisions with Massive Charm Quarks
• Collinear Subtractions in Hadroproduction of Heavy Quarks
• D^0, D^+, D_s^+, and Lambda_c^+ Fragmentation Functions from CERN LEP1

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