Precise determination of muon and electromagnetic shower contents from shower universality property

Abstract

We consider two new aspects of Extensive Air Shower development universality allowing to make accurate estimation of muon and electromagnetic (EM) shower contents in two independent ways. In the first case, to get muon (or EM) signal in water Cherenkov tanks or in scintillator detectors it is enough to know the vertical depth of shower maximum and the total signal in the ground detector. In the second case, the EM signal can be calculated from the primary particle energy and the zenith angle. In both cases the parametrizations of muon and EM signals are almost independent on primary particle nature, energy and zenith angle. Implications of the considered properties for mass composition and hadronic interaction studies are briefly discussed. The present study is performed on 28000 of proton, oxygen and iron showers, generated with CORSIKA 6.735 for $E^{-1}$ spectrum in the energy range log(E/eV)=18.5-20.0 and uniformly distributed in cos^2(theta) in zenith angle interval theta=0-65 degrees for QGSJET II/Fluka interaction models.

Submitted to Phys. Rev. D

References in corpus (6)

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• New facts about muon production in Extended Air Shower simulations
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• The Concepts of "Age" and "Universality" in Cosmic Ray Showers
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Cited by in corpus (4)

• The Muon Puzzle in cosmic-ray induced air showers and its connection to the Large Hadron Collider
• An extended universality of electron distributions in cosmic ray showers of high energies and its application
• Slope of the lateral density function of extensive air showers around the knee region as an indicator of shower age
• On the efficiency of the evaluation of the primary cosmic ray composition using lateral distributions of air shower electromagnetic component