English

Dark matter annihilation into gamma-ray line generated by anomalies

High Energy Physics - Phenomenology 2009-09-29 v1

Abstract

We study the phenomenology of a UX(1)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 XX, 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.

Keywords

Cite

@article{arxiv.0909.5055,
  title  = {Dark matter annihilation into gamma-ray line generated by anomalies},
  author = {Y. Mambrini},
  journal= {arXiv preprint arXiv:0909.5055},
  year   = {2009}
}

Comments

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