Dark matter annihilation into gamma-ray line generated by anomalies

Details Dark matter annihilation into gamma-ray line generated by anomalies Dark matter annihilation into gamma-ray line generated by anomalies

2009-09-28

arxiv.org/abs/0909.5055v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Proceedings of DSU09 "The Dark Side of the Universe", 1-5 June 2009, Melbourne, 6 pages, 2 figures

Scientific paper

We study the phenomenology of a $U_X(1)$ extension of the Standard Model where the SM particles are not charged under the new abelian group. The Green-Schwarz mechanism insures that the model is anomaly free. The erstwhile invisible dark gauge field $X$, even if produced with difficulty at the LHC has however a clear signature in gamma-ray telescopes. We investigate what BSM scale (which can be interpreted as a low-energy string scale) would be reachable by the FERMI/GLAST telescope after 5 years of running and show that a 1 TeV scale can be testable, which is highly competitive with the LHC.

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