Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1998-06-20
Phys.Rev.D59:034020,1999
Physics
High Energy Physics
High Energy Physics - Phenomenology
19 pages, latex, revtex, psfig
Scientific paper
10.1103/PhysRevD.59.034020
We reexamine the charm contribution to atmospheric lepton fluxes in the context of perturbative QCD. We include next-to-leading order corrections and discuss theoretical uncertainties due to the extrapolations of the gluon distributions at small-x. We show that the charm contribution to the atmospheric muon flux becomes dominant over the conventional contribution from pion and kaon decays at energies of about 10^5 GeV. We compare our fluxes with previous calculations.
Hall Reno Mary
Pasquali Lara
Sarcevic Ina
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