Cosmic Ray composition around the knee from EAS electromagnetic and muon data

2001/12/20 by The EAS-TOP, EAS-TOP, The, MACRO Collaborations +1
Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #astro-ph

paper · pdf · doi:10.48550/arxiv.astro-ph/0112473

Contribution to TAUP2001, Sep. 8-11 2001, Assergi, Italy

arxiv created 2001/12/20 · arxiv updated 2009/12/01

Abstract

We report the analysis of the Ne-Nmuon coincident events collected by the MACRO/EAS-TOP collaboration at the Gran Sasso Laboratories. The result points to a primary composition becoming heavier around the knee of the primary spectrum (in the energy region 10**15-10**16 eV). The result is in very good agreement with the measurements of EAS-TOP alone at the surface, wich detects muons with energy Emuon > 1 GeV and uses the same (QGSJET) interaction model.

Related

• The composition of cosmic rays according to the data on EAS cores
• The Physics of the Knee in the Cosmic Ray Spectrum
• Status of the EAS studies of cosmic rays with energy below 10**16 eV
• Detection of cosmic rays in the PeV to EeV energy range
• Alternative interpretation of cosmic ray investigations above the knee