Neutrino fluxes from dark matter in the HESS J1745-290 source at the Galactic center



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Ruiz Cembranos, José Alberto and Gammaldi, Viviana and López Maroto, Antonio (2014) Neutrino fluxes from dark matter in the HESS J1745-290 source at the Galactic center. Physical Review D, 90 (4). ISSN 1550-7998

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The spectral study of the HESS J1745-290 high-energy gamma-ray cutoff from the Galactic center is compatible with a signal of dark matter (DM) annihilation or decay. If this is the case, a neutrino flux from that source is also expected. We analyze the neutrino flux predicted by DM particles able to create the HESS J1745-290 gamma-rays observations. We focus on the electroweak and hadronic channels, which are favored by present measurements. In particular, we study DM annihilating into W+W- and u (u) over bar with DM masses of 48.8 and 27.9 TeV, respectively. We estimate the resolution angle and exposition time necessary to test the DM hypothesis as the origin of the gamma-ray signal.

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© 2014 American Physical Society. We would like to thank Juande Zornoza and Carlos de los Heros for useful comments. This work has been supported by UCM predoctoral grant, MICINN (Spain) project numbers FIS 2008-01323, FIS2011-23000, FPA2011-27853-01, Consolider-Ingenio MULTIDARK CSD2009-00064, and the Department of Energy, Contract DE-AC02-76SF00515. J. A. R. C. thanks the support of the Becas Complutense del Amo program.

Uncontrolled Keywords:Gamma-ray source, Center black-hole, High-energy, Halos, Contraction, Simulations, Telescope, Direction, Emission, Baryons
Subjects:Sciences > Physics
ID Code:27392
Deposited On:18 Nov 2014 11:34
Last Modified:20 Nov 2014 09:30

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