Search for Supernova Relic Neutrinos with 2.2 MeV Gamma Tagging at Super-Kamiokande-IV

Collaboration
for the collaboration.
Nov, 2015

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2015201720192021202210
Abstract: (Elsevier)
Tagging the 2.2 MeV gamma released from a neutron capture on hydrogen can provide an effective tool in identifying low-energy electron anti-neutrinos, and can thus reduce the background in supernova relic neutrino searches. With 960 days data at Super-Kamiokande-IV applying this new technique, no significant signals are found in the energy range 13.3 MeV < < 31.3 MeV. A differential flux upper limit is calculated with no model dependence assumed.
  • 13.15.+g
  • 13.85.Rm
  • 97.60.Bw
  • 29.90.+r
  • neutron tagging
  • Super Kamiokande
  • Supernova Relic Neutrinos
  • neutrino: flux
  • upper limit
  • n: capture