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Abstract: I review the physics of the Diffuse Supernova Neutrino flux or Background,DSNB, in the context of future searches at the next generation of neutrinoobservatories. The theory of the DSNB is discussed in its fundamental elements,namely the cosmological rate of supernovae, neutrino production inside a corecollapse supernova, redshift, and flavor oscillation effects. The current upperlimits are also reviewed, and results are shown for the rates and energydistributions of the events expected at future liquid argon and liquidscintillator detectors of O10 kt mass, and water Cherenkov detectors up to a0.5 Mt mass. Perspectives are given on the significance of future observationsof the DSNB, both at the discovery and precision phases, for the investigationof the physics of supernovae and of the properties of the neutrino.



Autor: Cecilia Lunardini

Fuente: https://arxiv.org/







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