Search for Quantum Decoherence in Neutrino Oscillations with KM3NeT ORCA6

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F24%3A00389352" target="_blank" >RIV/68407700:21670/24:00389352 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.22323/1.444.1025" target="_blank" >https://doi.org/10.22323/1.444.1025</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.22323/1.444.1025" target="_blank" >10.22323/1.444.1025</a>

Result language
angličtina
Original language name
Search for Quantum Decoherence in Neutrino Oscillations with KM3NeT ORCA6
Original language description
Quantum decoherence of neutrino states is an effect that is proposed in various theories of quantum gravity. It is envisaged to emerge from interactions of the neutrino as a quantum system with the environment and may destroy the superposition of neutrino mass states, which leads to a modification of neutrino oscillation probabilities. KM3NeT/ORCA, a neutrino telescope designed to detect various neutrino flavours across a broad spectrum of energies, can probe this phenomenon. ORCA is a water Cherenkov detector that is currently under construction in the Mediterranean Sea. It was designed to detect atmospheric neutrinos in the GeV energy range. The main objective of ORCA is the precise measurement of neutrino oscillations. Therefore, the detector provides the possibility to investigate various beyond Standard Model scenarios that may alter the oscillation pattern. This contribution reports on first constraints on the strength of decoherence effects with KM3NeT. We provide upper limits on the decoherence parameters γ21 and γ31. The high-purity neutrino sample used for this analysis was collected with a six Detection Units configuration of ORCA with an exposure of 433 kton-years.
Czech name
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Czech description
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Project
<a href="/en/project/LM2023063" target="_blank" >LM2023063: Laboratoire Souterrain de Modane – participation of the Czech Republic</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
38th International Cosmic Ray Conference (ICRC2023)
ISBN
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ISSN
1824-8039
e-ISSN
1824-8039
Number of pages
10
Pages from-to
1-10
Publisher name
PoS - Proceedings of Science, Sissa Medialab srl
Place of publication
Trieste
Event location
Nagoya
Event date
Jul 26, 2023
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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