KamLAND SENSITIVITY TO NEUTRINOS FROM PRE-SUPERNOVA STARS
In the late stages of nuclear burning for massive stars (M > 8 M[subscript ⊙]), the production of neutrino–antineutrino pairs through various processes becomes the dominant stellar cooling mechanism. As the star evolves, the energy of these neutrinos increases and in the days preceding the supern...
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| Format: | Article |
| Language: | en_US |
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IOP Publishing
2016
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| Online Access: | http://hdl.handle.net/1721.1/102640 https://orcid.org/0000-0002-9970-108X |
| _version_ | 1811070390566387712 |
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| author | Winslow, Lindley |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Winslow, Lindley |
| author_sort | Winslow, Lindley |
| collection | MIT |
| description | In the late stages of nuclear burning for massive stars (M > 8 M[subscript ⊙]), the production of neutrino–antineutrino pairs through various processes becomes the dominant stellar cooling mechanism. As the star evolves, the energy of these neutrinos increases and in the days preceding the supernova a significant fraction of emitted electron anti-neutrinos exceeds the energy threshold for inverse beta decay on free hydrogen. This is the golden channel for liquid scintillator detectors because the coincidence signature allows for significant reductions in background signals. We find that the kiloton-scale liquid scintillator detector KamLAND can detect these pre-supernova neutrinos from a star with a mass of 25 M[subscript ⊙] at a distance less than 690 pc with 3σ significance before the supernova. This limit is dependent on the neutrino mass ordering and background levels. KamLAND takes data continuously and can provide a supernova alert to the community. |
| first_indexed | 2024-09-23T08:35:13Z |
| format | Article |
| id | mit-1721.1/102640 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:35:13Z |
| publishDate | 2016 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/1026402022-09-23T13:06:24Z KamLAND SENSITIVITY TO NEUTRINOS FROM PRE-SUPERNOVA STARS Winslow, Lindley Massachusetts Institute of Technology. Department of Physics Winslow, Lindley In the late stages of nuclear burning for massive stars (M > 8 M[subscript ⊙]), the production of neutrino–antineutrino pairs through various processes becomes the dominant stellar cooling mechanism. As the star evolves, the energy of these neutrinos increases and in the days preceding the supernova a significant fraction of emitted electron anti-neutrinos exceeds the energy threshold for inverse beta decay on free hydrogen. This is the golden channel for liquid scintillator detectors because the coincidence signature allows for significant reductions in background signals. We find that the kiloton-scale liquid scintillator detector KamLAND can detect these pre-supernova neutrinos from a star with a mass of 25 M[subscript ⊙] at a distance less than 690 pc with 3σ significance before the supernova. This limit is dependent on the neutrino mass ordering and background levels. KamLAND takes data continuously and can provide a supernova alert to the community. 2016-05-23T23:17:26Z 2016-05-23T23:17:26Z 2016-02 2015-06 Article http://purl.org/eprint/type/JournalArticle 1538-4357 0004-637X http://hdl.handle.net/1721.1/102640 Asakura, K., A. Gando, Y. Gando, T. Hachiya, S. Hayashida, H. Ikeda, K. Inoue, et al. “KamLAND SENSITIVITY TO NEUTRINOS FROM PRE-SUPERNOVA STARS.” The Astrophysical Journal 818, no. 1 (February 10, 2016): 91. © 2016 The American Astronomical Society https://orcid.org/0000-0002-9970-108X en_US http://dx.doi.org/10.3847/0004-637x/818/1/91 The Astrophysical Journal Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf IOP Publishing IOP Publishing |
| spellingShingle | Winslow, Lindley KamLAND SENSITIVITY TO NEUTRINOS FROM PRE-SUPERNOVA STARS |
| title | KamLAND SENSITIVITY TO NEUTRINOS FROM PRE-SUPERNOVA STARS |
| title_full | KamLAND SENSITIVITY TO NEUTRINOS FROM PRE-SUPERNOVA STARS |
| title_fullStr | KamLAND SENSITIVITY TO NEUTRINOS FROM PRE-SUPERNOVA STARS |
| title_full_unstemmed | KamLAND SENSITIVITY TO NEUTRINOS FROM PRE-SUPERNOVA STARS |
| title_short | KamLAND SENSITIVITY TO NEUTRINOS FROM PRE-SUPERNOVA STARS |
| title_sort | kamland sensitivity to neutrinos from pre supernova stars |
| url | http://hdl.handle.net/1721.1/102640 https://orcid.org/0000-0002-9970-108X |
| work_keys_str_mv | AT winslowlindley kamlandsensitivitytoneutrinosfrompresupernovastars |