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Supernova neutrino detection in NOvA
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abstract
The NOvA long-baseline neutrino experiment uses a pair of large, segmented, liquid-scintillator calorimeters to study neutrino oscillations, using GeV-scale neutrinos from the Fermilab NuMI beam. These detectors are also sensitive to the flux of neutrinos which are emitted during a core-collapse supernova through inverse beta decay interactions on carbon at energies of $\mathcal{O}(10~\text{MeV})$. This signature provides a means to study the dominant mode of energy release for a core-collapse supernova occurring in our galaxy. We describe the data-driven software trigger system developed and employed by the NOvA experiment to identify and record neutrino data from nearby galactic supernovae. This technique has been used by NOvA to self-trigger on potential core-collapse supernovae in our galaxy, with an estimated sensitivity reaching out to 10~kpc distance while achieving a detection efficiency of 23\% to 49\% for supernovae from progenitor stars with masses of 9.6\~M$_\odot$ to 27\~M$_\odot$, respectively.
Forward citations
Cited by 1 Pith paper
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Timing-Based Search for Magnetic Monopoles with the NOvA Detector on the Surface
NOvA's 7.5-year search found zero magnetic monopole candidates and sets a 90% confidence upper limit of 8e-16 cm^-2 s^-1 sr^-1 for monopole speeds near 0.001c and masses above 1e9 GeV.
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