6533b82cfe1ef96bd128eb0c
RESEARCH PRODUCT
Finite-Mass Effects on Inclusive B-Meson Hadroproduction
Gustav KramerHubert SpiesbergerI. SchienbeinBernd A. Kniehlsubject
Quantum chromodynamicsPhysicsNuclear and High Energy PhysicsParticle physicsLarge Hadron ColliderMeson010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyTevatronFOS: Physical sciences01 natural sciencesNuclear physicsHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]0103 physical sciencesPhysics::Accelerator PhysicsB mesonddc:530High Energy Physics::ExperimentFermilab010306 general physicsNuclear ExperimentScalingFinite massdescription
We calculate the transverse-momentum (p_T) distribution for the inclusive hadroproduction of B mesons at intermediate values of p_T at next-to-leading order (NLO) in a dedicated finite-mass scheme using realistic non-perturbative fragmentation functions that are obtained through a global fit to e^+e^- data from CERN LEP1 and SLAC SLC exploiting their universality and scaling violations. We find that finite-mass effects moderately enhance the cross section, by about 20% at p_T = 2 m_b, and rapidly fade out with increasing value of p_T, so that the zero-mass prediction is reached. We also perform comparisons with recent ppbar data taken by the CDF Collaboration in run II at the Fermilab Tevatron and comment on the usefulness of the fixed-flavor-number scheme.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-05-30 |