Interesting Artice on Beyond Standard Model experimental Excesses and 7 KeV Sterlie Neutrinos

Snowmass2021 Cosmic Frontier White Paper: Puzzling Excesses in Dark Matter Searches and How to Resolve Them. Looks at the outstanding terestrial and astrophysics particle excess measurement. The interesting one for me is the 3.5 KeV x-ray line, and the 2-3KeV Xenon 1T electron recoil measurements. This could be one of the sterlie (to standard model) right handed neutrinos, we predicted at 7 KeV. We had it staying stable in matter as the Fermi background to cancel the axial force, but decaying in vacuum. Change in pressure of matter in the central of the galaxy, (upwards, pair producing right neutrinos, one which escapes, or downwards, freeing a right neutrino), would produces right handed neutrinos at 7KeV, which then decay to a left neutrino and an axiphoton. In the presence of matter some of these axial photons could convert to regular photon via interactions with quarks, the amount produced would be rough proportional to the matter density and rate of change in matter density in a region. The Xenon excess could also be due to right handed neutrino, a the Fermi sea of interacting with electrons, via a virtual axiphoton a virtual regular photon and virtual meson, (mainly PI), this would be quite suppressed but we would expect there to be many right handed neutrino in the presence of a fluid of a heavy atom like xenon. We may try a calculation of expected excess in the future.