Zenith Angle Dependence of Prompt Neutrino and Muon Fluxes in Cosmic Ray Interactions

Details Zenith Angle Dependence of Prompt Neutrino and Muon Fluxes in Cosmic Ray Interactions Zenith Angle Dependence of Prompt Neutrino and Muon Fluxes in Cosmic Ray Interactions

Apr 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aps..apr.s1013z&link_type=abstract

American Physical Society, APS April Meeting, April 14-17, 2007, abstract #S1.013

Astronomy and Astrophysics

Astrophysics

Scientific paper

Upon entering earth's atmosphere, high energy cosmic rays generate a shower of particles in which high energy muons and neutrinos are created. These high energy (> 10^18 eV) particles can mimic signals coming from astrophysical sources currently hunted for by neutrino telescopes. In particular the prompt component of such shower is important as prompt muons and neutrinos dominate over conventional particles at higher energies. We simulate the flux of prompt muons and neutrinos using pQCD calculations with NLO corrections to charm production cross sections. Prompt muon and neutrino fluxes for UHECR with non-zero zenith angles will be presented. We will discuss the effect of the Earth's curvature, newly added tau neutrino fluxes, and several techniques for numerically optimizing the simulation.

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