X-ray line signal from 7 keV axino dark matter decay

Jong Chul Park, Kyoungchul Kong, Seong Chan Park

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

Recently a weak X-ray emission around ≃ 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 2 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 languageEnglish
Pages (from-to)217-220
Number of pages4
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume733
DOIs
Publication statusPublished - 2014 Jun 2

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dark matter
Andromeda Galaxy
galaxies
decay
parity
x rays
neutrinos
photons

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

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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.",
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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 journalArticle

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AU - Park, Seong Chan

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