| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1853005 | Physics Letters B | 2014 | 4 Pages |
Abstract
Recently a weak X-ray emission around Eγ≃3.5 keVEγ≃3.5 keV was detected in the Andromeda galaxy and various galaxy clusters including the Perseus galaxy cluster but its source has been unidentified. Axino, the superpartner of axion, with a mass 2Eγ2Eγ is suggested as a possible origin of the line with R-parity violating decay into photon and neutrino. Moreover, most of parameter space is consistent with recent observation by the BICEP2 experiment.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Jong-Chul Park, Kyoungchul Kong, Seong Chan Park,