Anomalous X-Ray Galactic signal from 7 keV spin-$3/2$ dark matter decay
High Energy Physics - Phenomenology
2016-02-17 v2
Abstract
In order to explain the recently reported peak at keV in the galactic x-ray spectrum, we propose a simple model. In this model, the Standard Model is extended by including a neutral spin- vector-like fermion that transforms like a singlet under SM gauge group. This keV spin- fermion is considered to comprise a portion of the observed dark matter. Its decay into a neutrino and a photon with decay life commensurate with the observed data, fits the relic dark matter density and obeys the astrophysical constraints from the supernova cooling.
Cite
@article{arxiv.1509.02105,
title = {Anomalous X-Ray Galactic signal from 7 keV spin-$3/2$ dark matter decay},
author = {Sukanta Dutta and Ashok Goyal and Sanjeev Kumar},
journal= {arXiv preprint arXiv:1509.02105},
year = {2016}
}
Comments
13 pages and 2 Figures