arXiv:2002.06294·v2·High Energy Astrophysical Phenomena
The gluon condensation effect in the cosmic hadron spectra
W. Zhu🇨🇳 · P. Liu🇨🇳 · J.H. Ruan🇨🇳 · R.Q. Wang🇨🇳 · F. Wang🇨🇳
Abstract
Hardening of cosmic proton- and nuclei-spectra is explained by using the gluon condensation (GC) model, which states that a large amount of gluons in proton may condense near the high energy threshold. The results present the GC-effect as common origin of a series of anomalous astrophysical phenomena including the broken power-law in gamma-ray spectra, the excess in positron- and electron-spectra and hardening of proton- and nuclei-spectra.
Comments: 25 pages, 9 figures; accepted for publication in JCAP