The very high energy gamma-ray emissions from pulsars are usually considered to be dominated by leptonic scenario since the hadronic flux is weak. We point out that the gluon condensation predicted by a nonlinear QCD evolution equation may greatly enhance the cross sections of proton-target interactions and give rise to a characteristic broken power law in the gamma-ray spectra. The result is used to explore the gluon condensation signature in the observed gamma-ray spectra from pulsars.
@article{arxiv.2012.08767,
title = {Exploring the possible gluon condensation signature in gamma-ray emission from pulsars},
author = {J. H. Ruan and Z. C. Zheng and W. Zhu},
journal= {arXiv preprint arXiv:2012.08767},
year = {2021}
}
Comments
24 pages, 14 figures and 1 table. Accepted for publication in JCAP