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arXiv · 1405.4282

Astrophysical aspects of milli-charged dark matter in a Higgs-Stueckelberg model

A. L. dos Santos·D. Hadjimichef
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Abstract

An extension of the Standard Model is studied, in which two new vector bosons are introduced, a first boson $Z'$ coupled to the SM by the usual minimal coupling, producing an enlarged gauge sector in the SM. The second boson $A'$ field, in the dark sector of the model, remains massless and originates a dark photon $γ'$. A hybrid mixing scenario is considered based on a combined Higgs and Stueckelberg mechanisms. In a Compton-like process a photon scattered by a WIMP is converted into a dark photon. This process is studied, in an astrophysical application obtaining an estimate of the impact on stellar cooling of white dwarfs and neutron stars.

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A. L. dos Santos, D. Hadjimichef. 2015-03-04. Astrophysical aspects of milli-charged dark matter in a Higgs-Stueckelberg model. https://doi.org/10.1142/s0217732315500893

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