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Annihilation of Dipolar Dark Matter: χχ→γγ

Journal: Journal of Nuclear Physics, Material Sciences, Radiation and Applications (Vol.6, No. 1)

Publication Date:

Authors : ;

Page : 33-38

Keywords : dark matter annihilation; dipolar dark matter; gamma-ray signatures; annihilation cross section; relic density;

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Abstract

In this work we study the annihilation of dark matter, considering it as a neutral particle with magnetic and/or electric moments not null. The calculation of the effective section of the process χχbar→γγ is made starting from a general form of coupling χ χbar γ in the framework of an extension of the Standard Model. We found, when taking into account an annihilation of DDM-antiDDM to monoenergetic photons, that for small masses, mχ ≤ 0 GeV, an electric dipole moment ~10–6 e cm is required to satisfy the current residual density, while for the range of greater sensitivity of HAWC, 10 TeV < Eg < 20 TeV, the electrical dipole moment must be of the order of 10–8 e cm.

Last modified: 2019-12-10 19:06:53