2 papers
hep-ph2026
Neutrino lines and photon continua from cascade dark matter decay
Jun Guo, Shi-ying Zhao, Bin Zhu
We investigate the two-body decay of fermionic dark matter, , where the light mediator subsequently decays into photons. We consider two benchmark m…
hep-ph2026
A MeV-Scale Dark QCD Solution to the Axion Domain Wall Problem
Jun Guo, Zhaofeng Kang, Jiang Zhu
PQ solution to the strong CP problem probably encounters the axion domain wall problem. In this article, we propose a simple and testable solution, assuming that the $U(1)_{\rm PQ}…