Reconciling open charm production at the Fermilab Tevatron with QCD
| Autor: | I. Schienbein, Hubert Spiesberger, Bernd A. Kniehl, Gustav Kramer |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Quark
perturbation theory [quantum chromodynamics] Particle physics Meson inclusive reaction [anti-p p] High Energy Physics::Lattice Tevatron hadroproduction [charmed meson] General Physics and Astronomy FOS: Physical sciences Parton transverse momentum [differential cross section] High Energy Physics - Experiment Nuclear physics DGLAP equation High Energy Physics - Experiment (hep-ex) High Energy Physics - Phenomenology (hep-ph) Factorization ddc:550 Fermilab numerical calculations Nuclear Experiment CDF [interpretation of experiments] Physics Quantum chromodynamics Annihilation 1960 GeV-cms High Energy Physics::Phenomenology D*(2010) nonperturbative [fragmentation function] parton [model] D0 High Energy Physics - Phenomenology D+ charm [mass] High Energy Physics::Experiment |
| Zdroj: | Physical review letters 96(1), 012001 (2006). doi:10.1103/PhysRevLett.96.012001 |
| DOI: | 10.48550/arxiv.hep-ph/0508129 |
| Popis: | 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. Comment: 9 pages, 8 figures |
| Databáze: | OpenAIRE |
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