The Diffuse Supernova Neutrino Background

By J. Beacom. 2006

260 citations recorded by the source corpus.

The diffuse supernova neutrino background (DSNB) is the weak glow of megaelectronvolt neutrinos and antineutrinos from distant core-collapse supernovae. The DSNB has not been detected yet, but the Super-Kamiokande (SK) 2003 upper limit on the flux is close to predictions, now quite precise, that are based on astrophysical data. If SK is modified with dissolved gadolinium to reduce detector backgrounds and increase the energy range for analysis, then it should detect the DSNB at a rate of a few events per year, providing a new probe of supernova neutrino emission and the cosmic core-collapse rate. If the DSNB is not detected, then new physics will be required. Neutrino astronomy, although uniquely powerful, has proven extremely difficult—only the Sun and the nearby Supernova 1987A have been detected to date—so the promise of detecting new sources soon is exciting indeed.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/116a05fa5aba57f51fcc0ccd99d7b3f733b808dc

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Citations in the corpus

A simple approach to the supernova progenitor–explosion connection (2016, background): “More indirect constraints on the fate of massive stars come from, for example, the comparison of the observed star formation and supernova rates (Horiuchi et al. 2011; Botticella et al. 2012) and the limit for the diffuse supernova neutrino background (Beacom 2010).”
Galactic Searches for Dark Matter (2012, background): “These include Solar neutrinos, atmospheric neutrinos, and diffuse supernova neutrinos (Horiuchi et al., 2009; Beacom, 2010).”
The extragalactic background light and the gamma-ray opacity of the universe (2012, background): “The total EBL intensity can therefore be used to derive an estimate of the supernova rate and the resulting flux of supernova neutrinos (Horiuchi et al., 2009; Beacom, 2010).”
THE COSMIC CORE-COLLAPSE SUPERNOVA RATE DOES NOT MATCH THE MASSIVE-STAR FORMATION RATE (2011, background): “We select only the most recent decade, from 2000 to 2009, since previous decades have severe incompleteness problems (Horiuchi & Beacom 2010).”
Deep Underground Neutrino Experiment (DUNE), Far Detector Technical Design Report, Volume II: DUNE Physics (2020, background): “DSNB have not yet been observed, but an observation would greatly enhance our understanding of supernova-neutrino emission and the overall core-collapse rate [300, 301, 302].”
Theia: an advanced optical neutrino detector (2019, background): “The Diffuse Supernova Neutrino Background (DSNB) consists of neutrinos emitted by all core-collapse supernovae (SNe) throughout the Universe [110,111].”
Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report Volume 1: The LBNF and DUNE Projects (2015, background): “The DSNB has not yet been observed, but an observation would greatly enhance our understanding of supernova-neutrino emission and the overall core-collapse rate [172].”
Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report Volume 2: The Physics Program for DUNE at LBNF (2015, background): “The DSNB has not yet been observed, but an observation would greatly enhance our understanding of supernova-neutrino emission and the overall core-collapse rate [172].”