14–24 Jul 2025
CICG - International Conference Centre - Geneva, Switzerland
Europe/Zurich timezone

Probing the mass composition of TeV cosmic rays with HAWC

18 Jul 2025, 17:35
15m
Room C

Room C

Talk Cosmic-Ray Indirect CRI

Speaker

Dr Juan Carlos Arteaga-Velazquez

Description

In this contribution, we have investigated the energy spectra of the elemental mass groups of cosmic rays for the Light (H+He), medium (C+O) and heavy (Ne-Fe) components using the HAWC observatory. The study was carried out in the energy interval from 10 TeV to 1 PeV using almost 5 years of data on hadronic air showers. The energy spectra were unfolded using the bidimensional distribution of the lateral shower age versus the reconstructed primary energy. We have employed the QGSJET-II-04 high-energy hadronic interaction model for the current analysis. The results show the presence of fine structure in the spectra of the light, medium and heavy mass groups of cosmic rays.

Collaboration(s) HAWC

Author

Co-author

Presentation materials