ORCA: measuring the neutrino mass hierarchy with atmospheric neutrinos in the Mediterranean
International audience Since the measurement of the mixing angle θ13, the determination of the neutrino mass hierarchy has become a central challenge of neutrino physics. Recent studies have pointed out that it could reveal itself in the atmospheric neutrino sector, where oscillations are affected b...
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ftccsdartic:oai:HAL:obspm-03864050v1 2023-08-27T04:11:25+02:00 ORCA: measuring the neutrino mass hierarchy with atmospheric neutrinos in the Mediterranean van Elewyck, Véronique AstroParticule et Cosmologie (APC (UMR_7164)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS) 2015-04-15 https://hal-obspm.ccsd.cnrs.fr/obspm-03864050 https://doi.org/10.1088/1742-6596/598/1/012033 en eng HAL CCSD IOP Science info:eu-repo/semantics/altIdentifier/doi/10.1088/1742-6596/598/1/012033 obspm-03864050 https://hal-obspm.ccsd.cnrs.fr/obspm-03864050 doi:10.1088/1742-6596/598/1/012033 INSPIRE: 1361822 ISSN: 1742-6596 EISSN: 1742-6588 Journal of Physics: Conference Series https://hal-obspm.ccsd.cnrs.fr/obspm-03864050 Journal of Physics: Conference Series, 2015, 598, pp.012033. ⟨10.1088/1742-6596/598/1/012033⟩ [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] info:eu-repo/semantics/article Journal articles 2015 ftccsdartic https://doi.org/10.1088/1742-6596/598/1/012033 2023-08-05T22:48:01Z International audience Since the measurement of the mixing angle θ13, the determination of the neutrino mass hierarchy has become a central challenge of neutrino physics. Recent studies have pointed out that it could reveal itself in the atmospheric neutrino sector, where oscillations are affected by Earth matter effects. This contribution reports on the ORCA feasibility study for such a measurement with an underwater Cherenkov detector based on the technology developed for the KM3NeT neutrino telescope. The baseline performances are discussed for a reference detector with 50 instrumented lines. Preliminary projections, based on the muon channel only, indicate that a 3 — 5σ significance measurement is within reach of a detector with an exposure of the order of 20 Mton years. Further improvement is expected to come from the electron channel, which is currently under study. Article in Journal/Newspaper Orca Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Journal of Physics: Conference Series 598 012033 |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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English |
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[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
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[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] van Elewyck, Véronique ORCA: measuring the neutrino mass hierarchy with atmospheric neutrinos in the Mediterranean |
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[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
description |
International audience Since the measurement of the mixing angle θ13, the determination of the neutrino mass hierarchy has become a central challenge of neutrino physics. Recent studies have pointed out that it could reveal itself in the atmospheric neutrino sector, where oscillations are affected by Earth matter effects. This contribution reports on the ORCA feasibility study for such a measurement with an underwater Cherenkov detector based on the technology developed for the KM3NeT neutrino telescope. The baseline performances are discussed for a reference detector with 50 instrumented lines. Preliminary projections, based on the muon channel only, indicate that a 3 — 5σ significance measurement is within reach of a detector with an exposure of the order of 20 Mton years. Further improvement is expected to come from the electron channel, which is currently under study. |
author2 |
AstroParticule et Cosmologie (APC (UMR_7164)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
van Elewyck, Véronique |
author_facet |
van Elewyck, Véronique |
author_sort |
van Elewyck, Véronique |
title |
ORCA: measuring the neutrino mass hierarchy with atmospheric neutrinos in the Mediterranean |
title_short |
ORCA: measuring the neutrino mass hierarchy with atmospheric neutrinos in the Mediterranean |
title_full |
ORCA: measuring the neutrino mass hierarchy with atmospheric neutrinos in the Mediterranean |
title_fullStr |
ORCA: measuring the neutrino mass hierarchy with atmospheric neutrinos in the Mediterranean |
title_full_unstemmed |
ORCA: measuring the neutrino mass hierarchy with atmospheric neutrinos in the Mediterranean |
title_sort |
orca: measuring the neutrino mass hierarchy with atmospheric neutrinos in the mediterranean |
publisher |
HAL CCSD |
publishDate |
2015 |
url |
https://hal-obspm.ccsd.cnrs.fr/obspm-03864050 https://doi.org/10.1088/1742-6596/598/1/012033 |
genre |
Orca |
genre_facet |
Orca |
op_source |
ISSN: 1742-6596 EISSN: 1742-6588 Journal of Physics: Conference Series https://hal-obspm.ccsd.cnrs.fr/obspm-03864050 Journal of Physics: Conference Series, 2015, 598, pp.012033. ⟨10.1088/1742-6596/598/1/012033⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1088/1742-6596/598/1/012033 obspm-03864050 https://hal-obspm.ccsd.cnrs.fr/obspm-03864050 doi:10.1088/1742-6596/598/1/012033 INSPIRE: 1361822 |
op_doi |
https://doi.org/10.1088/1742-6596/598/1/012033 |
container_title |
Journal of Physics: Conference Series |
container_volume |
598 |
container_start_page |
012033 |
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1775354182106087424 |