511 keV γ-ray emission from the galactic bulge by MeV millicharged dark matter

Ji Haeng Huh, Jihn E. Kim, Jong Chul Park, Seong Chan Park

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

We propose a possible explanation for the recently observed anomalous 511 keV line with a new "millicharged" fermion. This new fermion is light [B(MeV)]. Nevertheless, it has never been observed by any collider experiments by virtue of its tiny electromagnetic charge ee. In particular, we constrain parameters of this millicharged particle if the 511 keV cosmic γ-ray emission from the galactic bulge is due to positron production from this new particle.

Original languageEnglish
Pages (from-to)554-556
Number of pages3
JournalAIP Conference Proceedings
Volume1078
DOIs
Publication statusPublished - 2008
Event16th International Conference on Supersymmetry and the Unification of Fundamental Interactions, SUSY08 - Seoul, Korea, Republic of
Duration: 2008 Jun 162008 Jun 21

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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