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Direct Measurement of Supernova Neutrino Emission Parameters with a Gadolinium-Enhanced Super-Kamiokande Detector

Hasan Yuksel·Shin'ichiro Ando·John Beacom
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Abstract

The time-integrated luminosity and average energy of the neutrino emission spectrum are essential diagnostics of core-collapse supernovae. The SN 1987A electron antineutrino observations by the Kamiokande-II and IMB detectors are only roughly consistent with each other and theory. Using new measurements of the star formation rate history, we reinterpret the Super-Kamiokande upper bound on the electron antineutrino flux from all past supernovae as an excluded region in neutrino emission parameter space. A gadolinium-enhanced Super-Kamiokande should be able to jointly measure these parameters, and a future megaton-scale detector would enable precision studies.

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Hasan Yuksel, Shin'ichiro Ando, John Beacom. 2006-06-08. Direct Measurement of Supernova Neutrino Emission Parameters with a Gadolinium-Enhanced Super-Kamiokande Detector. https://doi.org/10.1103/physrevc.74.015803

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