Speaker
Aion Viana
(IFSC-Universidade de São Paulo)
Description
Despite mounting evidence that dark matter (DM) exists in the Universe, its fundamental nature remains unknown. We present sensitivity estimates to detect DM particles with a future very-high-energy (≳ TeV) wide field-of-view gamma-ray observatory in the Southern Hemisphere, currently in its research and development phase under the name Southern Wide field-of-view Gamma-ray Observatory (SWGO). This observatory would search for gamma rays from the annihilation or decay of DM particles in many key targets in the Southern sky, such as the Galactic halo, several dwarf galaxies, including the promising Reticulum II, and the Large Magellanic Cloud. With a wide field of view and long exposures, such an observatory will have unprecedented sensitivity to DM in the mass range of ∼100 GeV to a few PeV from observations of a large fraction of the Galactic halo around the Galactic Center and from Galactic subhalos targets. These results, combined with those from other present and future gamma-ray observatories, will likely probe the thermal relic annihilation cross section of Weakly Interacting Massive Particles for all masses from ∼80 TeV down to the GeV range in most annihilation channels.
| Please choose the session this abstract belongs to | Dark matter |
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Primary author
Aion Viana
(IFSC-Universidade de São Paulo)
Co-authors
Andrea Albert
(Los Alamos National Laboratory)
Harm Schoorlemmer
(Max-Planck Institut für Kernphysik)
J. Patrick Harding
(Los Alamos National Laboratory)
Jim Hinton
(Max-Planck Institut für Kernphysik)
Vitor de Souza
(IFSC-Universidade de São Paulo)
