PreprintarXiv licencearXiv
From DAMPE to LHAASO: Rigidity Scales and Composition Changes in Galactic Cosmic Rays
Abstract
This commentary briefly reviews recent measurements from DAMPE and LHAASO on cosmic rays to explore why the spectra of different species change shape across the TeV-PeV energy range. DAMPE finds that several primary nuclei show spectral softening at a similar magnetic rigidity, while the combined proton and helium data from DAMPE and LHAASO reveal a more complex evolution at higher energies. By comparing these spectral features and composition changes, we discuss what they may tell us about the sources of Galactic cosmic rays and how these particles propagate through the Galaxy.
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BibTeX
@misc{liu2026from,
title = {{From DAMPE to LHAASO: Rigidity Scales and Composition Changes in Galactic Cosmic Rays}},
author = {Ruo-Yu Liu and Zhen Cao},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.08109},
eprint = {2609.08109},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.08109},
}
RIS
TY - UNPB
TI - From DAMPE to LHAASO: Rigidity Scales and Composition Changes in Galactic Cosmic Rays
AU - Ruo-Yu Liu
AU - Zhen Cao
PY - 2026
DA - 2026/09/08
PB - arXiv
DO - 10.48550/arxiv.2609.08109
UR - https://arxiv.org/abs/2609.08109
AB - This commentary briefly reviews recent measurements from DAMPE and LHAASO on cosmic rays to explore why the spectra of different species change shape across the TeV-PeV energy range. DAMPE finds that several primary nuclei show spectral softening at a similar magnetic rigidity, while the combined proton and helium data from DAMPE and LHAASO reveal a more complex evolution at higher energies. By comparing these spectral features and composition changes, we discuss what they may tell us about the sources of Galactic cosmic rays and how these particles propagate through the Galaxy.
ER -