2015/02/17 by A. D'Amone, I. De Mitri, D'Amone, A. +3
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Astrophysical Phenomena (astro-ph.HE) #Particle physics theoretical and experimental studies #astro-ph.HE
paper · pdf · doi:10.48550/arxiv.1502.04840
6 page, 6 figures. arXiv admin note: substantial text overlap with arXiv:1408.6739
arxiv created 2015/02/17 · openalex publication_date 2015/02/17 · arxiv updated 2015/02/18 · openalex created_date 2022/10/11 · openalex updated_date 2026/07/28
ARGO-YBJ preliminary results of the measurements of the all-particle and light-component (i.e. protons and helium) cosmic ray energy spectra between approximately 5 TeV and 5 PeV are reported and discussed. The resulting all-particle spectrum (measured in the energy range 100TeV - 3PeV) is in good agreement with both theoretical parametrizations and previous measurements. The light-component (i.e. p + He) has been measured with high resolution up to about 5 PeV. The preliminary result is in agreement with direct measurements and then show a clear indication of a bending below 1PeV. Improvements of event selection/reconstruction with the full statistics and a complete analysis of systematic uncertainties is currently under way.