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

Jong Chul Park; Seong Chan Park

doi:10.1016/j.physletb.2012.12.035

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

Jong Chul Park, Seong Chan Park

Department of Physics

Research output: Contribution to journal › Article › peer-review

32 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 (~εF^μνF'_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 language	English
Pages (from-to)	1401-1406
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	718
Issue number	4-5
DOIs	https://doi.org/10.1016/j.physletb.2012.12.035
Publication status	Published - 2013 Jan 29

Bibliographical note

Funding Information:
S.C. is supported by Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology ( 2011-0010294 and 2011-0029758 ).

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/j.physletb.2012.12.035

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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.",

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

Abstract

Bibliographical note

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