About EAS size spectra and primary energy spectra in the knee region

2000/03/06 by S. Ter–Antonyan, S. V. Ter-Antonyan, Ter-Antonyan, S. V. +2 · 3 citations
Physics and Astronomy · #Astrophysics (astro-ph) #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Nuclear physics research studies #astro-ph #hep-ex #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ex/0003006

12 pages, 2 figures, Submitted to APh

openalex publication_date 2000/03/06 · arxiv created 2000/07/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Based on the unified analyses of KASCADE, AKENO, EAS-TOP and ANI EAS size spectra, the approximations of energy spectra of different primary nuclei have been found. Calculations were carried out using SIBYLL and QGSJET interaction models in 0.1-100 PeV primary energy range. The results point to existence of both rigidity-dependent steepening energy spectra at R=200-400 TV and an additional proton (neutron) component with differential energy spectrum (6.1+/-0.7)10^-11(E/Ek)^-1.5 (m².s.sr.TeV)^-1 before the knee Ek=2030+/-130 TeV and with power index g2=-3.1+/-0.05 after the knee.

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