Friday, March 8, 2013

1303.1798 (Christoph Weniger)

Gamma-ray lines in the Fermi-LAT data?    [PDF]

Christoph Weniger
Gamma-ray lines are traditional smoking gun signatures for dark matter annihilation in the Universe. In regions optimized for large signal-to-noise ratio, we identified a signal candidate for a gamma-ray line at energies around 130 GeV with a post-trials significance of 3.2\sigma. Spectral and spatial properties are not inconsistent with a dark matter signal. One year has passed since the initial papers, and I give here a brief summary and an update on the status of the 130 GeV feature in the un-reprocessed P7 gamma-ray data of the Fermi-LAT.
View original: http://arxiv.org/abs/1303.1798

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