Fragmentation production of charmed hadrons in electron-positron annihilation
- Moscow Institute for Physics and Technology (State University) (Russian Federation)
Processes involving the production of D* mesons and {Lambda}{sub c} baryons in electron-positron annihilation at the energies of 10.58 and 91.18 GeV are considered. At the energy of 10.58 GeV, the production of pairs of B mesons that is followed by their decay to charmed particles is analyzed along with direct charm production. The violation of scaling in the respective fragmentation functions is taken into account in the next-to-leading-logarithmic approximation of perturbative QCD. The required nonperturbative fragmentation functions are extracted numerically from experimental data obtained at B factories and are approximated by simple analytic expressions. It is shown that the difference in the nonperturbative fragmentation functions for transitions to mesons and baryons can readily be explained on the basis of the quark-counting rules.
- OSTI ID:
- 21426663
- Journal Information:
- Physics of Atomic Nuclei, Vol. 73, Issue 10; Other Information: DOI: 10.1134/S1063778810100091; Copyright (c) 2010 Pleiades Publishing, Ltd.; ISSN 1063-7788
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ANALYTIC FUNCTIONS
APPROXIMATIONS
B MESONS
D MESONS
ELECTRON-POSITRON INTERACTIONS
EXPERIMENTAL DATA
FRAGMENTATION
GEV RANGE
LAMBDA BARYONS
MESON FACTORIES
PARTICLE DECAY
QUANTUM CHROMODYNAMICS
QUARKS
SCALE INVARIANCE
ACCELERATORS
BARYONS
BEAUTY MESONS
BEAUTY PARTICLES
BOSONS
CALCULATION METHODS
CHARM PARTICLES
CHARMED MESONS
DATA
DECAY
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FIELD THEORIES
FUNCTIONS
HADRONS
HYPERONS
INFORMATION
INTERACTIONS
INVARIANCE PRINCIPLES
LEPTON-LEPTON INTERACTIONS
MESONS
NUMERICAL DATA
PARTICLE INTERACTIONS
PSEUDOSCALAR MESONS
QUANTUM FIELD THEORY
STRANGE PARTICLES