6533b851fe1ef96bd12a9a77
RESEARCH PRODUCT
Reconciling open charm production at the Fermilab Tevatron with QCD
I. SchienbeinHubert SpiesbergerBernd A. KniehlGustav Kramersubject
Quarkperturbation theory [quantum chromodynamics]Particle physicsMesoninclusive reaction [anti-p p]High Energy Physics::LatticeTevatronhadroproduction [charmed meson]General Physics and AstronomyFOS: Physical sciencesPartontransverse momentum [differential cross section]High Energy Physics - ExperimentNuclear physicsDGLAP equationHigh Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology (hep-ph)Factorizationddc:550Fermilabnumerical calculationsNuclear ExperimentCDF [interpretation of experiments]PhysicsQuantum chromodynamicsAnnihilation1960 GeV-cmsHigh Energy Physics::PhenomenologyD*(2010)nonperturbative [fragmentation function]parton [model]D0High Energy Physics - PhenomenologyD+charm [mass]High Energy Physics::Experimentdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2005-08-11 |