Pinpointing astrophysical bursts of low-energy neutrinos embedded into the noise

Abstract

We propose a novel method to increase the probability of identifying impulsive astrophysical bursts of low-energy neutrinos. The proposed approach exploits the temporal structure differences between astrophysical bursts and background fluctuations and it allows us to pinpoint weak signals otherwise unlikely to be detected. With respect to previous search strategies, this method strongly reduces the misidentification probability, e.g. for Super Kamiokande this reduction is a factor of $\sim 9$ within a distance of $D\sim 200$ kpc without decreasing the detection efficiency. In addition, we extend the proposed method to a network of different detectors and we show that the Kamland $\&$ LVD background reduction is improved by a factor $\sim 20$ up to an horizon of $D\sim 75$ kpc.

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Cited by in corpus (5)

• Gravitational Waves from Core-Collapse Supernovae
• Identification of neutrino bursts associated to supernovae with Real-time Test Statistic (RTS${}^2$) method
• Multimessenger Analysis Strategy for Core-Collapse Supernova Search: Gravitational Waves and Low-energy Neutrinos
• Expanding Core-Collapse Supernova Search Horizon of Neutrino Detectors
• Joint Analysis Method on Gravitational Waves and Low-Energy Neutrinos to Detect Core-Collapse Supernovae