Search for dark matter annihilation in the Galactic Center with IceCube-79: IceCube Collaboration
Abstract:
The Milky Way is expected to be embedded in a halo of dark matter particles, with the highest density in the central region, and decreasing density with the halo-centric radius. Dark matter might be indirectly detectable at Earth through a flux of stable particles generated in dark matter annihilations and peaked in the direction of the Galactic Center. We present a search for an excess flux of muon (anti-) neutrinos from dark matter annihilation in the Galactic Center using the cubic-kilometer-sized IceCube neutrino detector at the South Pole. There, the Galactic Center is always seen above the horizon. Thus, new and dedicated veto techniques against atmospheric muons are required to make the southern hemisphere accessible for IceCube. We used 319.7 live-days of data from IceCube operating in its 79-string configuration during 2010 and 2011. No neutrino excess was found and the final result is compatible with the background. We …
Año de publicación:
2015
Keywords:
Fuente:
googleTipo de documento:
Other
Estado:
Acceso abierto
Áreas de conocimiento:
Áreas temáticas de Dewey:
- Cuerpos y fenómenos celestes específicos
- Mecánica clásica
- Ciencias de la Tierra de América del Norte
Procesado con IAObjetivos de Desarrollo Sostenible:
- ODS 9: Industria, innovación e infraestructura
- ODS 17: Alianzas para lograr los objetivos
- ODS 5: Igualdad de género
Procesado con IA