Earth matter effects in supernova neutrinos: Optimal detector locations
A model-independent experimental signature for flavor oscillations in the neutrino signal from the next Galactic supernova (SN) would be the observation of Earth matter effects. We calculate the probability for observing a Galactic SN shadowed by the Earth as a function of the detector's geogra...
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ftcern:oai:cds.cern.ch:942324 2023-05-15T18:22:03+02:00 Earth matter effects in supernova neutrinos: Optimal detector locations Mirizzi, A Raffelt, G G Serpico, Pasquale Dario 2006-04-13 http://cds.cern.ch/record/942324 eng eng http://cds.cern.ch/record/942324 astro-ph/0604300 MPP-2006-28 oai:cds.cern.ch:942324 Astrophysics and Astronomy 2006 ftcern 2018-07-28T08:11:34Z A model-independent experimental signature for flavor oscillations in the neutrino signal from the next Galactic supernova (SN) would be the observation of Earth matter effects. We calculate the probability for observing a Galactic SN shadowed by the Earth as a function of the detector's geographic latitude. This probability depends only mildly on details of the Galactic SN distribution. A location at the North Pole would be optimal with a shadowing probability of about 60%, but a far-northern location such as Pyhasalmi in Finland, the proposed site for a large-volume scintillator detector, is almost equivalent (58%). We also consider several pairs of detector locations and calculate the probability that only one of them is shadowed, allowing a comparison between a shadowed and a direct signal. For the South Pole combined with Kamioka this probability is almost 75%, for the South Pole combined with Pyhasalmi it is almost 90%. One particular scenario consists of a large-volume scintillator detector located in Pyhasalmi to measure the geo-neutrino flux in a continental location and another such detector in Hawaii to measure it in an oceanic location. The probability that only one of them is shadowed exceeds 50% whereas the probability that at least one is shadowed is about 80%. Other/Unknown Material South pole CERN Document Server (CDS) North Pole South Pole |
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Astrophysics and Astronomy Mirizzi, A Raffelt, G G Serpico, Pasquale Dario Earth matter effects in supernova neutrinos: Optimal detector locations |
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Astrophysics and Astronomy |
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A model-independent experimental signature for flavor oscillations in the neutrino signal from the next Galactic supernova (SN) would be the observation of Earth matter effects. We calculate the probability for observing a Galactic SN shadowed by the Earth as a function of the detector's geographic latitude. This probability depends only mildly on details of the Galactic SN distribution. A location at the North Pole would be optimal with a shadowing probability of about 60%, but a far-northern location such as Pyhasalmi in Finland, the proposed site for a large-volume scintillator detector, is almost equivalent (58%). We also consider several pairs of detector locations and calculate the probability that only one of them is shadowed, allowing a comparison between a shadowed and a direct signal. For the South Pole combined with Kamioka this probability is almost 75%, for the South Pole combined with Pyhasalmi it is almost 90%. One particular scenario consists of a large-volume scintillator detector located in Pyhasalmi to measure the geo-neutrino flux in a continental location and another such detector in Hawaii to measure it in an oceanic location. The probability that only one of them is shadowed exceeds 50% whereas the probability that at least one is shadowed is about 80%. |
author |
Mirizzi, A Raffelt, G G Serpico, Pasquale Dario |
author_facet |
Mirizzi, A Raffelt, G G Serpico, Pasquale Dario |
author_sort |
Mirizzi, A |
title |
Earth matter effects in supernova neutrinos: Optimal detector locations |
title_short |
Earth matter effects in supernova neutrinos: Optimal detector locations |
title_full |
Earth matter effects in supernova neutrinos: Optimal detector locations |
title_fullStr |
Earth matter effects in supernova neutrinos: Optimal detector locations |
title_full_unstemmed |
Earth matter effects in supernova neutrinos: Optimal detector locations |
title_sort |
earth matter effects in supernova neutrinos: optimal detector locations |
publishDate |
2006 |
url |
http://cds.cern.ch/record/942324 |
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North Pole South Pole |
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North Pole South Pole |
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South pole |
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http://cds.cern.ch/record/942324 astro-ph/0604300 MPP-2006-28 oai:cds.cern.ch:942324 |
_version_ |
1766201411017637888 |