Detecting the Neutrino Mass Hierarchy with a Supernova at IceCube
IceCube, a future km^3 antarctic ice Cherenkov neutrino telescope, is highly sensitive to a galactic supernova (SN) neutrino burst. The Cherenkov light corresponding to the total energy deposited by the SN neutrinos in the ice can be measured relative to background fluctuations with a statistical pr...
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ftcern:oai:cds.cern.ch:610232 2023-05-15T13:53:09+02:00 Detecting the Neutrino Mass Hierarchy with a Supernova at IceCube Dighe, A S Keil, M T Raffelt, G G 2003-03-25 http://cds.cern.ch/record/610232 eng eng http://cds.cern.ch/record/610232 hep-ph/0303210 MPI-PHT-2003-13 oai:cds.cern.ch:610232 Particle Physics - Phenomenology 2003 ftcern 2018-07-28T05:55:22Z IceCube, a future km^3 antarctic ice Cherenkov neutrino telescope, is highly sensitive to a galactic supernova (SN) neutrino burst. The Cherenkov light corresponding to the total energy deposited by the SN neutrinos in the ice can be measured relative to background fluctuations with a statistical precision much better than 1%. If the SN is viewed through the Earth, the matter effect on neutrino oscillations can change the signal by more than 5%, depending on the flavor-dependent source spectra and the neutrino mixing parameters. Therefore, IceCube together with another high-statistics experiment such as Super-Kamiokande can detect the Earth effect, an observation that would identify specific neutrino mixing scenarios that are difficult to pin down with long-baseline experiments. In particular, the normal mass hierarchy can be clearly detected if the third mixing angle is not too small, sin^2 theta_13 > 10^-3. The small flavor-dependent differences of the SN neutrino fluxes and spectra that are found in state-of-the-art simulations suffice for this purpose. Although the absolute calibration uncertainty at IceCube may exceed 5%, the Earth effect would typically vary by a large amount over the duration of the SN signal, obviating the need for a precise calibration. Therefore, IceCube with its unique geographic location and expected longevity can play a decisive role as a "co-detector" to measure SN neutrino oscillations. It is also a powerful stand-alone SN detector that can verify the delayed-explosion scenario. Other/Unknown Material Antarc* Antarctic CERN Document Server (CDS) Antarctic |
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CERN Document Server (CDS) |
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ftcern |
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English |
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Particle Physics - Phenomenology |
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Particle Physics - Phenomenology Dighe, A S Keil, M T Raffelt, G G Detecting the Neutrino Mass Hierarchy with a Supernova at IceCube |
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Particle Physics - Phenomenology |
description |
IceCube, a future km^3 antarctic ice Cherenkov neutrino telescope, is highly sensitive to a galactic supernova (SN) neutrino burst. The Cherenkov light corresponding to the total energy deposited by the SN neutrinos in the ice can be measured relative to background fluctuations with a statistical precision much better than 1%. If the SN is viewed through the Earth, the matter effect on neutrino oscillations can change the signal by more than 5%, depending on the flavor-dependent source spectra and the neutrino mixing parameters. Therefore, IceCube together with another high-statistics experiment such as Super-Kamiokande can detect the Earth effect, an observation that would identify specific neutrino mixing scenarios that are difficult to pin down with long-baseline experiments. In particular, the normal mass hierarchy can be clearly detected if the third mixing angle is not too small, sin^2 theta_13 > 10^-3. The small flavor-dependent differences of the SN neutrino fluxes and spectra that are found in state-of-the-art simulations suffice for this purpose. Although the absolute calibration uncertainty at IceCube may exceed 5%, the Earth effect would typically vary by a large amount over the duration of the SN signal, obviating the need for a precise calibration. Therefore, IceCube with its unique geographic location and expected longevity can play a decisive role as a "co-detector" to measure SN neutrino oscillations. It is also a powerful stand-alone SN detector that can verify the delayed-explosion scenario. |
author |
Dighe, A S Keil, M T Raffelt, G G |
author_facet |
Dighe, A S Keil, M T Raffelt, G G |
author_sort |
Dighe, A S |
title |
Detecting the Neutrino Mass Hierarchy with a Supernova at IceCube |
title_short |
Detecting the Neutrino Mass Hierarchy with a Supernova at IceCube |
title_full |
Detecting the Neutrino Mass Hierarchy with a Supernova at IceCube |
title_fullStr |
Detecting the Neutrino Mass Hierarchy with a Supernova at IceCube |
title_full_unstemmed |
Detecting the Neutrino Mass Hierarchy with a Supernova at IceCube |
title_sort |
detecting the neutrino mass hierarchy with a supernova at icecube |
publishDate |
2003 |
url |
http://cds.cern.ch/record/610232 |
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Antarctic |
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Antarctic |
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Antarc* Antarctic |
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Antarc* Antarctic |
op_relation |
http://cds.cern.ch/record/610232 hep-ph/0303210 MPI-PHT-2003-13 oai:cds.cern.ch:610232 |
_version_ |
1766258102321020928 |