Parton model calculation of inclusive charm production by a low-energy antiproton beam

Journal Article · Mon Jun 01 00:00:00 EDT 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.79.114005· OSTI ID:21296440

Artoisenet, Pierre; Braaten, Eric ^[1]

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1. Center for Particle Physics and Phenomenology, Universite Catholique de Louvain, B1348 Louvain-la-Neuve (Belgium)

The cross section for inclusive charm production by a low-energy antiproton beam is calculated using the parton model and next-to-leading-order perturbative QCD. For an antiproton beam with a momentum of 15 GeV, the charm cross section at next-to-leading order in the QCD coupling constant changes by more than an order of magnitude as the charm quark mass is varied from 1.3 to 1.7 GeV. The variations can be reduced by demanding that the same value of the charm quark mass give the measured charm cross sections for fixed-target experiments with a proton beam. The resulting estimate for the charm cross section from a low-energy antiproton beam is large enough to allow the study of charm meson mixing.

• OSTI ID: 21296440
• Journal Information: Physical Review. D, Particles Fields, Vol. 79, Issue 11; Other Information: DOI: 10.1103/PhysRevD.79.114005; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTIPROTON BEAMS
C QUARKS
CHARM PARTICLES
COMPUTERIZED SIMULATION
COUPLING CONSTANTS
CROSS SECTIONS
GEV RANGE 01-10
GEV RANGE 10-100
GLUON MODEL
MASS
MESONS
MIXING
PERTURBATION THEORY
PROTON BEAMS
QUANTUM CHROMODYNAMICS
QUARK MODEL
QUARKS
VARIATIONS