HE2 - High Energy Astrophysical Neutrino detection |
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Speaker |
Barranco, Juan |
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Coauthors |
Barranco, Juan; Bernal, Argelia; Delepine, David |
| Talk Title |
Diffuse Neutrino Supernova Background As A Cosmological Test |
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Abstract |
The future detection and measurement of the diffuse neutrino supernova background will provide us with information about supernova neutrino emission and the cosmic core-collapse supernova rate. Little has been said about the information that this measurement could give us about the expansion history of the Universe. The purpose of this article is to study the change of the predicted diffuse supernova neutrino background as a function of the cosmological model. In particular, we study three different models: the Λ–Cold Dark Matter model, the Logotropic universe and a bulk viscous matter-dominated universe. By fitting the free parameters of each model with the supernova Ia probe, we calculate the predicted number of events in these three models. We found that the spectra and number of events for the Λ–Cold dark matter model and the Logotropic model are almost indistinguishable, while a bulk viscous matter-dominated cosmological model predicts more events. |
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