Combined sensitivity to the neutrino mass ordering with JUNO, the IceCube Upgrade, and PINGU
The ordering of the neutrino mass eigenstates is one of the fundamental open questions in neutrino physics. While current-generation neutrino oscillation experiments are able to produce moderate indications on this ordering, upcoming experiments of the next generation aim to provide conclusive evide...
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| Format: | Article |
| Language: | English |
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American Physical Society
2020
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| Online Access: | https://hdl.handle.net/1721.1/124496 |
| _version_ | 1811072696791859200 |
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| author | Argüelles, C. Axani, Spencer Nicholas Collin, G.H Conrad, Janet Diaz, Alejandro Moulai, Marjon H. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Argüelles, C. Axani, Spencer Nicholas Collin, G.H Conrad, Janet Diaz, Alejandro Moulai, Marjon H. |
| author_sort | Argüelles, C. |
| collection | MIT |
| description | The ordering of the neutrino mass eigenstates is one of the fundamental open questions in neutrino physics. While current-generation neutrino oscillation experiments are able to produce moderate indications on this ordering, upcoming experiments of the next generation aim to provide conclusive evidence. In this paper we study the combined performance of the two future multi-purpose neutrino oscillation experiments JUNO and the IceCube Upgrade, which employ two very distinct and complementary routes toward the neutrino mass ordering. The approach pursued by the 20 kt medium-baseline reactor neutrino experiment JUNO consists of a careful investigation of the energy spectrum of oscillated [line over]v [subscript]e produced by ten nuclear reactor cores. The IceCube Upgrade, on the other hand, which consists of seven additional densely instrumented strings deployed in the center of IceCube DeepCore, will observe large numbers of atmospheric neutrinos that have undergone oscillations affected by Earth matter. In a joint fit with both approaches, tension occurs between their preferred mass-squared differences [physics equation; see source] within the wrong mass ordering. In the case of JUNO and the IceCube Upgrade, this allows to exclude the wrong ordering at >5σ on a timescale of 3–7 years—even under circumstances that are unfavorable to the experiments’ individual sensitivities. For PINGU, a 26-string detector array designed as a potential low-energy extension to IceCube, the inverted ordering could be excluded within 1.5 years (3 years for the normal ordering) in a joint analysis. ©2020 Keywords: neutrino oscillations; neutrinos; mass; neutrino detectors; precision measurements |
| first_indexed | 2024-09-23T09:10:24Z |
| format | Article |
| id | mit-1721.1/124496 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T09:10:24Z |
| publishDate | 2020 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/1244962022-09-30T13:55:46Z Combined sensitivity to the neutrino mass ordering with JUNO, the IceCube Upgrade, and PINGU Argüelles, C. Axani, Spencer Nicholas Collin, G.H Conrad, Janet Diaz, Alejandro Moulai, Marjon H. Massachusetts Institute of Technology. Department of Physics The ordering of the neutrino mass eigenstates is one of the fundamental open questions in neutrino physics. While current-generation neutrino oscillation experiments are able to produce moderate indications on this ordering, upcoming experiments of the next generation aim to provide conclusive evidence. In this paper we study the combined performance of the two future multi-purpose neutrino oscillation experiments JUNO and the IceCube Upgrade, which employ two very distinct and complementary routes toward the neutrino mass ordering. The approach pursued by the 20 kt medium-baseline reactor neutrino experiment JUNO consists of a careful investigation of the energy spectrum of oscillated [line over]v [subscript]e produced by ten nuclear reactor cores. The IceCube Upgrade, on the other hand, which consists of seven additional densely instrumented strings deployed in the center of IceCube DeepCore, will observe large numbers of atmospheric neutrinos that have undergone oscillations affected by Earth matter. In a joint fit with both approaches, tension occurs between their preferred mass-squared differences [physics equation; see source] within the wrong mass ordering. In the case of JUNO and the IceCube Upgrade, this allows to exclude the wrong ordering at >5σ on a timescale of 3–7 years—even under circumstances that are unfavorable to the experiments’ individual sensitivities. For PINGU, a 26-string detector array designed as a potential low-energy extension to IceCube, the inverted ordering could be excluded within 1.5 years (3 years for the normal ordering) in a joint analysis. ©2020 Keywords: neutrino oscillations; neutrinos; mass; neutrino detectors; precision measurements 2020-04-06T19:28:13Z 2020-04-06T19:28:13Z 2020-02-21 2020-02-21T15:34:59Z Article http://purl.org/eprint/type/JournalArticle 2470-0029 2470-0010 https://hdl.handle.net/1721.1/124496 Aartsen, M. G., et al., "Combined sensitivity to the neutrino mass ordering with JUNO, the IceCube Upgrade, and PINGU." Physical review D 101, 3 (2020): no. 032006 doi 10.1103/PhysRevD.101.032006 ©2020 Author(s) en http://dx.doi.org/10.1103/PhysRevD.101.032006 Physical review D Creative Commons Attribution 3.0 unported license http://creativecommons.org/licenses/by/3.0 application/pdf American Physical Society American Physical Society |
| spellingShingle | Argüelles, C. Axani, Spencer Nicholas Collin, G.H Conrad, Janet Diaz, Alejandro Moulai, Marjon H. Combined sensitivity to the neutrino mass ordering with JUNO, the IceCube Upgrade, and PINGU |
| title | Combined sensitivity to the neutrino mass ordering with JUNO, the IceCube Upgrade, and PINGU |
| title_full | Combined sensitivity to the neutrino mass ordering with JUNO, the IceCube Upgrade, and PINGU |
| title_fullStr | Combined sensitivity to the neutrino mass ordering with JUNO, the IceCube Upgrade, and PINGU |
| title_full_unstemmed | Combined sensitivity to the neutrino mass ordering with JUNO, the IceCube Upgrade, and PINGU |
| title_short | Combined sensitivity to the neutrino mass ordering with JUNO, the IceCube Upgrade, and PINGU |
| title_sort | combined sensitivity to the neutrino mass ordering with juno the icecube upgrade and pingu |
| url | https://hdl.handle.net/1721.1/124496 |
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