Illuminating the 130 GeV gamma line with continuum photons

Timothy Cohen, Mariangela Lisanti, Tracy R. Slatyer, Jay G. Wacker

Research output: Contribution to journalArticlepeer-review

50 Scopus citations

Abstract

There is evidence for a 130 GeV -ray line at the Galactic Center in the Fermi Large Area Telescope data. Dark matter candidates that explain this feature should also annihilate to Standard Model particles, resulting in a continuous spectrum of photons. To study this continuum, we analyze the Fermi data down to 5 GeV, restricted to the inner 3° of the Galaxy. We place a strong bound on the ratio of continuum photons to monochromatic line photons that is independent of uncertainties in the dark matter density profile. The derived constraints exclude neutralino dark matter as an explanation for the line.

Original languageEnglish (US)
Article number134
JournalJournal of High Energy Physics
Volume2012
Issue number10
DOIs
StatePublished - 2012

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Keywords

  • Beyond Standard Model
  • Cosmology of Theories beyond the SM

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