Searches for invisible neutrino decay with KM3NeT/ORCA6

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F24%3A00389337" target="_blank" >RIV/68407700:21670/24:00389337 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.22323/1.444.0997" target="_blank" >https://doi.org/10.22323/1.444.0997</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.22323/1.444.0997" target="_blank" >10.22323/1.444.0997</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Searches for invisible neutrino decay with KM3NeT/ORCA6

Popis výsledku v původním jazyce

In the era of precision measurements of the neutrino oscillation parameters, upcoming neutrino experiments will also be sensitive to physics beyond the Standard Model. ORCA is an atmospheric neutrino detector currently being built at the bottom of the Mediterranean Sea, that will measure atmospheric neutrino oscillation parameters with high precision and probe new physics at GeV energies. The final ORCA configuration of 115 string-like vertical detection units will be able to probe several theories beyond the Standard Model in neutrino physics. In this work, a three-flavour neutrino oscillation scenario in which the third neutrino mass state, ν3, decays into an undetectable state, e.g., a sterile neutrino, is investigated with the first configuration of ORCA with six detection lines, ORCA6. A refined high-purity neutrino sample corresponding to 433 kton-years of data taking has been analysed and optimised for the search of this phenomenon. This contribution presents the bounds obtained in the decay parameter, α3 = m3/τ3, and future sensitivity perspectives with ten years of data taking with the future ORCA configuration of 115 detection units.

Název v anglickém jazyce

Searches for invisible neutrino decay with KM3NeT/ORCA6

Popis výsledku anglicky

In the era of precision measurements of the neutrino oscillation parameters, upcoming neutrino experiments will also be sensitive to physics beyond the Standard Model. ORCA is an atmospheric neutrino detector currently being built at the bottom of the Mediterranean Sea, that will measure atmospheric neutrino oscillation parameters with high precision and probe new physics at GeV energies. The final ORCA configuration of 115 string-like vertical detection units will be able to probe several theories beyond the Standard Model in neutrino physics. In this work, a three-flavour neutrino oscillation scenario in which the third neutrino mass state, ν3, decays into an undetectable state, e.g., a sterile neutrino, is investigated with the first configuration of ORCA with six detection lines, ORCA6. A refined high-purity neutrino sample corresponding to 433 kton-years of data taking has been analysed and optimised for the search of this phenomenon. This contribution presents the bounds obtained in the decay parameter, α3 = m3/τ3, and future sensitivity perspectives with ten years of data taking with the future ORCA configuration of 115 detection units.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

<a href="/cs/project/LM2023063" target="_blank" >LM2023063: Podzemní laboratoř LSM - účast České republiky</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

38th International Cosmic Ray Conference (ICRC2023)

ISBN

—

ISSN

1824-8039

e-ISSN

1824-8039

Počet stran výsledku

10

Strana od-do

1-10

Název nakladatele

PoS - Proceedings of Science, Sissa Medialab srl

Místo vydání

Trieste

Místo konání akce

Nagoya

Datum konání akce

26. 7. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—