Secondary decays in atmospheric charm contributions to the flux of muons and muon neutrinos

L. Pasquali, M. H. Reno, Ina Sarcevic

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We present a calculation of the fluxes of muons and muon neutrinos from the decays of pions and kaons that are themselves the decay products of charmed particles produced in the atmosphere by cosmic ray-air collisions. Using the perturbative cross section for charm production, these lepton fluxes are two to three orders of magnitude smaller than the fluxes from the decays of pions and kaons directly produced in cosmic ray-air collisions. Intrinsic charm models do not significantly alter our conclusions for E < 103 GeV. Models with a charm cross section enhanced in the region above an incident cosmic ray energy of 103 GeV give enhanced lepton fluxes above 104 GeV, a region in which prompt muons dominate over the secondary decay contributions.

Original languageEnglish (US)
Pages (from-to)193-202
Number of pages10
JournalAstroparticle Physics
Volume9
Issue number3
StatePublished - Oct 1998

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muons
neutrinos
cosmic rays
kaons
decay
leptons
pions
collisions
air
cross sections
atmospheres
products
energy

Keywords

  • Atmospheric fluxes
  • Charmed mesons
  • Cosmic rays
  • Neutrinos

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Secondary decays in atmospheric charm contributions to the flux of muons and muon neutrinos. / Pasquali, L.; Reno, M. H.; Sarcevic, Ina.

In: Astroparticle Physics, Vol. 9, No. 3, 10.1998, p. 193-202.

Research output: Contribution to journalArticle

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