Abstract
Recently a weak X-ray emission around Eγ ≃ 3.5keV 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 2Eγ 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.
| Original language | English |
|---|---|
| Pages (from-to) | 217-220 |
| Number of pages | 4 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 733 |
| DOIs | |
| Publication status | Published - 2014 Jun 2 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
Cite this
}
X-ray line signal from 7 keV axino dark matter decay. / Park, Jong Chul; Kong, Kyoungchul; Park, Seong Chan.
In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 733, 02.06.2014, p. 217-220.Research output: Contribution to journal › Article
TY - JOUR
T1 - X-ray line signal from 7 keV axino dark matter decay
AU - Park, Jong Chul
AU - Kong, Kyoungchul
AU - Park, Seong Chan
PY - 2014/6/2
Y1 - 2014/6/2
N2 - Recently a weak X-ray emission around Eγ ≃ 3.5keV 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 2Eγ 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.
AB - Recently a weak X-ray emission around Eγ ≃ 3.5keV 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 2Eγ 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.
UR - http://www.scopus.com/inward/record.url?scp=84899837880&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84899837880&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2014.04.037
DO - 10.1016/j.physletb.2014.04.037
M3 - Article
VL - 733
SP - 217
EP - 220
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
ER -