Prompt atmospheric neutrinos and muons: NLO versus LO QCD predictions

Phys. Rev. D 61, 036005 – Published 7 January 2000
Graciela Gelmini, Paolo Gondolo, and Gabriele Varieschi

Abstract

We compare the leading and next-to-leading order QCD predictions for the flux of atmospheric muons and neutrinos from decays of charmed particles. We find that the full NLO lepton fluxes can be approximated to within 10% by the Born-level fluxes multiplied by an overall factor of 2.2-2.4, which depends slightly on the PDF. This supports the approach of Thunman, Ingelman and Gondolo. We also find that their very low lepton fluxes are due to the mild slope they used for the gluon distribution function at small momentum fractions, and that substantially larger lepton fluxes result when the slope of the gluon distribution function at small momentum fractions is larger.

DOI: http://dx.doi.org/10.1103/PhysRevD.61.036005

  • Received 27 April 1999
  • Published 7 January 2000

© 2000 The American Physical Society

Authors & Affiliations

Graciela Gelmini*

  • Department of Physics and Astronomy, UCLA (University of California, Los Angeles), 405 Hilgard Avenue, Los Angeles, California 90095

Paolo Gondolo

  • Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), Föhringer Ring 6, 80805 München, Germany

Gabriele Varieschi

  • Department of Physics and Astronomy, UCLA (University of California, Los Angeles), 405 Hilgard Avenue, Los Angeles, California 90095

  • *Email address: gelmini@physics.ucla.edu
  • Email address: gondolo@mppmu.mpg.de
  • Email address: variesch@physics.ucla.edu

References (Subscription Required)

Authorization Required


×
×

Images

×

Log In

Cancel
×

Search


Article Lookup
Paste a citation or DOI

Enter a citation
×
  1. Enter a citation to look up or terms to search.

    Ex: "PRL 112 068103", "Phys. Rev. Lett. 112, 068103", "10.1103/PhysRevLett.112.068103"