RT Journal Article
T1 Gamma-ray and neutrino fluxes from Heavy Dark Matter in the Galactic Center
A1 Gammaldi, Viviana
A1 Ruiz Cembranos, José Alberto
A1 Cruz Dombriz, Álvaro de la
A1 Lineros, Roberto A.
A1 López Maroto, Antonio
AB We present a study of the Galactic Center region as a possible source of both secondary gamma-ray and neutrino fluxes from annihilating dark matter. We have studied the gamma-ray flux observed by the High Energy Stereoscopic System (HESS) from the J1745-290 Galactic Center source. The data are well fitted as annihilating dark matter in combination with an astrophysical background. The analysis was performed by means of simulated gamma spectra produced by Monte Carlo event generators packages. We analyze the differences in the spectra obtained by the various Monte Carlo codes developed so far in particle physics. We show that, within some uncertainty, the HESS data can be fitted as a signal from a heavy dark matter density distribution peaked at the Galactic Center, with a power-law for the background with a spectral index which is compatible with the Fermi-Large Area Telescope (LAT) data from the same region. If this kind of dark matter distribution generates the gamma-ray flux observed by HESS, we also expect to observe a neutrino flux. We show prospective results for the observation of secondary neutrinos with the Astronomy with a Neutrino Telescope and Abyss environmental RESearch project (ANTARES), Ice Cube Neutrino Observatory (Ice Cube) and the Cubic Kilometer Neutrino Telescope (KM3NeT). Prospects solely depend on the device resolution angle when its effective area and the minimum energy threshold are fixed.
PB Elsevier
SN 1875-3892
YR 2015
FD 2015
LK https://hdl.handle.net/20.500.14352/35244
UL https://hdl.handle.net/20.500.14352/35244
LA eng
NO Gammaldi, V., et al. «Gamma-Ray and Neutrino Fluxes from Heavy Dark Matter in the Galactic Center». Physics Procedia, vol. 61, 2015, pp. 694-703. DOI.org (Crossref), https://doi.org/10.1016/j.phpro.2014.12.082.
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NO Ministerio de Economía, Comercio y Empresa (España)
NO Universidad Complutense de Madrid
NO Proyecto Método de Multimensajeros para la Detección de la Materia Oscura
NO Programa Conosolider-Ingenio
DS Docta Complutense
RD 27 jul 2024