Neutral and Millicharged Dark Matter Decay into Gamma-Ray Lines

2014/05/15 by Tiziana Scarnà, Tiziana Scarna, Scarna, Tiziana
Physics and Astronomy · #Atomic and Subatomic Physics Research #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.1405.3785

4 pages, 1 figure, 2 tables, Proceedings of the 49th Rencontres de Moriond, Electroweak Interactions and Unified Theories session, March 15th-22nd, 2014, La Thuile, Italy

arxiv created 2014/05/15 · openalex publication_date 2014/05/15 · arxiv updated 2014/05/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

A gamma-ray line observation would be a strong hint towards the detection of dark matter. The possibility that a decay of the dark matter particle is responsible for the emission of a line is investigated, for both a neutral and a millicharged dark matter. We focus here on a comparison of these two scenarios, based on an effective field theory description and relying on cosmic ray continuum constraints.

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