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T: Fachverband Teilchenphysik

T 78: Neutrinoastronomie II

T 78.3: Vortrag

Dienstag, 4. März 2008, 17:15–17:30, KGI-HS 1221

The diffuse supernova neutrino background — •Clemens Kießig — Max-Planck-Institut für Physik, Föhringer Ring 6, 80805 München

The convolved neutrino flux of all past supernovae, the diffuse supernova neutrino background (DSNB), is a promising observable that is complementary to the neutrino signal from the next galactic SN and that can give information on the star formation history at higher redshifts. While an upper bound on the electron antineutrino DSNB has been reported by the Super-Kamiokande collaboration, a number of future experiments may actually detect this flux. However, theoretical predictions show a significant scatter. It is thus advisable to parameterize the inputs that enter the calculation, namely the individual SN neutrino spectra and the SN rate, and allow for a variation of these parameters. After giving an overview on detectors as well as backgrounds and their reduction, I will discuss how the input parameters can be extracted from a future detection.

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