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| Paper: |
Dark Matter at the Galactic Centre: Dead or Alive? |
| Volume: |
528, New Horizons in Galactic Center Astronomy and Beyond |
| Page: |
429 |
| Authors: |
Bergström, L. |
| Abstract: |
Since the first release of Fermi-LAT data in 2008, there has been a lively
debate whether or not the GeV-scale excess seen in the data is caused by annihilation of
Dark Matter particles, as suggested by D. Hooper and colleagues [Hooper and Goodenough
(2011); Daylan et al. (2016)]. In 2015, two papers appeared which seemed
to close that possibility, instead arguing for a dominance of point-sources [Lee et al.
(2016); Bartels et al. (2015)]. However, recently this has been reanalyzed [Leane and
Slatyer (2019)], and surprisingly the evidence for point sources was argued to have been
caused by a misattribution caused by imperfectly overlapping templates. In this talk, I
review the situation on the GeV photon excess, discussing the compatibility with other
data on Dark Matter detection. At the present time, there are several (weak) indications
of a Dark Matter particle of mass between around 40 GeV to 100 GeV contributing to
the data. I indicate how the situation may be clearer in a few years from now. |
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