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 Dec 1
Event16th International Conference on Supersymmetry and the Unification of Fundamental Interactions, SUSY08 - Seoul, Korea, Republic of
Duration: 2008 Jun 162008 Jun 21

Fingerprint

galactic bulge
dark matter
rays
fermions
cosmic rays
positrons
electromagnetism

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Huh, Ji Haeng ; Kim, Jihn E. ; Park, Jong Chul ; Park, Seong Chan. / 511 keV γ-ray emission from the galactic bulge by MeV millicharged dark matter. In: AIP Conference Proceedings. 2008 ; Vol. 1078. pp. 554-556.
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511 keV γ-ray emission from the galactic bulge by MeV millicharged dark matter. / Huh, Ji Haeng; Kim, Jihn E.; Park, Jong Chul; Park, Seong Chan.

In: AIP Conference Proceedings, Vol. 1078, 01.12.2008, p. 554-556.

Research output: Contribution to journalConference article

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AU - Huh, Ji Haeng

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AU - Park, Jong Chul

AU - Park, Seong Chan

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N2 - 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.

AB - 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.

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