Radiatively decaying scalar dark matter through U(1) mixings and the Fermi 130 GeV gamma-ray line

Jong Chul Park, Seong Chan Park

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

In light of the recent observation of the Fermi-LAT 130 GeV gamma-ray line, we suggest a model of scalar dark matter in a hidden sector, which can decay into two (hidden) photons. The process is radiatively induced by a GUT scale fermion in the loop, which is charged under a hidden sector U(1), and the kinetic mixing (~εFμνF'μν) enables us to fit the required decay width for the Fermi-LAT peak. The model does not allow any dangerous decay channels into light standard model particles.

Original languageEnglish
Pages (from-to)1401-1406
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume718
Issue number4-5
DOIs
Publication statusPublished - 2013 Jan 29

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dark matter
gamma rays
scalars
decay
sectors
grand unified theory
fermions
kinetics
photons

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

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AB - In light of the recent observation of the Fermi-LAT 130 GeV gamma-ray line, we suggest a model of scalar dark matter in a hidden sector, which can decay into two (hidden) photons. The process is radiatively induced by a GUT scale fermion in the loop, which is charged under a hidden sector U(1), and the kinetic mixing (~εFμνF'μν) enables us to fit the required decay width for the Fermi-LAT peak. The model does not allow any dangerous decay channels into light standard model particles.

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