Galactic Dark Matter signal and the Fermi-LAT measurement of the diffuse gamma-ray emission
We study diffuse gamma-ray emission at intermediate Galactic latitudes measured by the Fermi LAT with the aim of searching for a signal from dark matter annihilation or decay. In the absence of a robust dark matter signal, constraints are presented. We present and improve upon conservative dark matter limits obtained with no modeling of the foreground astrophysical diffuse emission. We do so, by taking into account uncertainties in several parameters which characterize conventional astrophysical emission and using a profile likelihood formalism. The resulting limits impact the range of particle masses over which dark matter thermal production in the early Universe is possible, and challenge the interpretation of the PAMELA/Fermi-LAT cosmic ray anomalies as annihilation of dark matter.
0
2016-03-18 15:31:32
1033
Dark matter, high-energy gamma rays
r6
Gabrijela
Zaharijas
70
COBISS_ID
3
4168699
DOI
15
http://inspirehep.net/record/1318537
NUK URN
18
URN:SI:UNG:REP:MFNSQ50G
icrc2013-0707.pdf
1088173
Predstavitvena datoteka
2016-03-18 15:31:40
0
Izvorni URL
2016-03-18 15:31:32