Imprint of Explosion Mechanism on Supernova Relic Neutrinos

Abstract

The spectrum and event rate of supernova relic neutrinos are calculated taking into account the dependence on the time it takes for the shock wave in supernova cores to revive. The shock revival time should depend on the still unknown explosion mechanism of collapse-driven supernovae. The contribution of black-hole-forming failed supernovae is also considered. The total event rate is higher for models with a longer shock revival time and/or a failed-supernova contribution. The hardness of the spectrum does not strongly depend on the shock revival time, but the spectrum becomes hard owing to the failed supernovae. Therefore, the shock-revival-time dependence of supernova relic neutrinos has different systematics from the fractions of failed supernovae.

5 pages, 4 figures, version to appear in PRD with moderate revisions

References in corpus (10)

• Observation of electron-antineutrino disappearance at Daya Bay
• Indication of Electron Neutrino Appearance from an Accelerator-produced Off-axis Muon Neutrino Beam
• The Diffuse Supernova Neutrino Background
• The Diffuse Supernova Neutrino Background is detectable in Super-Kamiokande
• Supernova Neutrino Light Curves and Spectra for Various Progenitor Stars: From Core Collapse to Proto-neutron Star Cooling
• Core-collapse supernovae missed by optical surveys
• Neutrino signals from the formation of black hole: a probe of equation of state of dense matter
• Diffuse neutrino flux from failed supernovae
• Neutrino mass hierarchy determination with IceCube-PINGU
• Combining collective, MSW, and turbulence effects in supernova neutrino flavor evolution

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