Language:

130 GeV Fermi gamma-ray line from dark matter decay

Kyae, Bumseok ; Park, Jong-Chul

Physics letters. B, 2013-01, Vol.718 (4-5), p.1425-1429 [Peer Reviewed Journal]

Full text available

Citations Cited by

Title:
130 GeV Fermi gamma-ray line from dark matter decay
Author: Kyae, Bumseok ; Park, Jong-Chul
Subjects: Dark matter decay ; Dimension 6 operator ; Fermi-LAT ; Gamma-ray ; Scalar dark matter
Is Part Of: Physics letters. B, 2013-01, Vol.718 (4-5), p.1425-1429
Description: The 130 GeV gamma-ray line based on tentative analyses on the Fermi-LAT data is hard to be understood with dark matter annihilation in the conventional framework of the MSSM. We point out that it can be nicely explained with two body decay of a scalar dark matter (ϕ˜DM→γγ) by the dimension 6 operator suppressed with the mass of the grand unification scale (∼1016GeV), L⊃|ϕ˜DM|2FμνFμν/MGUT2, in which the scalar dark matter ϕ˜DM develops a TeV scale vacuum expectation value. We propose a viable model explaining the 130 GeV gamma-ray line.
Publisher: Elsevier B.V
Language: English

Back to results list