Dark matter annihilation into gamma-ray line generated by anomalies
Abstract
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.
- Publication:
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arXiv e-prints
- Pub Date:
- September 2009
- DOI:
- 10.48550/arXiv.0909.5055
- arXiv:
- arXiv:0909.5055
- Bibcode:
- 2009arXiv0909.5055M
- Keywords:
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- High Energy Physics - Phenomenology
- E-Print:
- Proceedings of DSU09 "The Dark Side of the Universe", 1-5 June 2009, Melbourne, 6 pages, 2 figures