Pre-Supernova Neutrinos in Large Dark Matter Direct Detection Experiments. (arXiv:1905.09283v1 [hep-ph])
<a href="http://arxiv.org/find/hep-ph/1/au:+Raj_N/0/1/0/all/0/1">Nirmal Raj</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Takhistov_V/0/1/0/all/0/1">Volodymyr Takhistov</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Witte_S/0/1/0/all/0/1">Samuel J. Witte</a>
The next Galactic core-collapse supernova (SN) is a highly anticipated
observational target for neutrino telescopes. However, even prior to collapse,
massive dying stars shine copiously in ‘pre-supernova’ (pre-SN) neutrinos,
which can potentially act as efficient SN warning alarms and provide novel
information about the very last stages of stellar evolution. We explore the
sensitivity to pre-SN neutrinos of large scale direct dark matter detection
experiments, which, unlike dedicated neutrino telescopes, take full advantage
of coherent neutrino-nucleus scattering. We find that argon-based detectors
with target masses of $mathcal{O}(100)$ tonnes (i.e. comparable in size to the
proposed ARGO experiment) can detect $mathcal{O}(10-100)$ pre SN neutrinos
coming from a source at a characteristic distance of $sim$200 pc, such as
Betelgeuse ($alpha$ Orionis). For such a source, large scale dark matter
experiments could provide a SN warning siren $sim$10 hours prior to the
explosion. We also comment on the complementarity of large scale direct dark
matter detection experiments and neutrino telescopes in the understanding of
core-collapse SN.
The next Galactic core-collapse supernova (SN) is a highly anticipated
observational target for neutrino telescopes. However, even prior to collapse,
massive dying stars shine copiously in ‘pre-supernova’ (pre-SN) neutrinos,
which can potentially act as efficient SN warning alarms and provide novel
information about the very last stages of stellar evolution. We explore the
sensitivity to pre-SN neutrinos of large scale direct dark matter detection
experiments, which, unlike dedicated neutrino telescopes, take full advantage
of coherent neutrino-nucleus scattering. We find that argon-based detectors
with target masses of $mathcal{O}(100)$ tonnes (i.e. comparable in size to the
proposed ARGO experiment) can detect $mathcal{O}(10-100)$ pre SN neutrinos
coming from a source at a characteristic distance of $sim$200 pc, such as
Betelgeuse ($alpha$ Orionis). For such a source, large scale dark matter
experiments could provide a SN warning siren $sim$10 hours prior to the
explosion. We also comment on the complementarity of large scale direct dark
matter detection experiments and neutrino telescopes in the understanding of
core-collapse SN.
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