Probing Physics Beyond the Neutrino Mass at the KATRIN Experiment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A90056%2F25%3A00639387" target="_blank" >RIV/61389005:90056/25:00639387 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.22323/1.476.0171" target="_blank" >http://dx.doi.org/10.22323/1.476.0171</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.22323/1.476.0171" target="_blank" >10.22323/1.476.0171</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Probing Physics Beyond the Neutrino Mass at the KATRIN Experiment

Popis výsledku v původním jazyce

Neutrinos present a number of unanswered questions and are a leading candidate for the potential hiding place of other new physics phenomena. Various of these hidden signatures of new physics can be explored with the KATRIN experiment. The principal objective of KATRIN is to quantify the neutrino mass through precision spectroscopy of tritium β-decay. Recently, KATRIN has improved the upper bound on the effective electron-neutrino mass to 0.45 eV at 90 % CL and is continuing to take data until end of 2025. Further, beyond the neutrino mass investigations involve the search for specific Lorentz invariance-violating parameters, that are only accessible via interaction processes such as the β-decay. Improved limits of the respective parameters have been obtained, solely based on the first measurement campaign. Additionally, the possible existence of an eV-scale sterile neutrino is being probed. Its existence is today predominantly motivated by the Gallium anomaly and KATRIN is engaged in investigating the associated parameter space. Furthermore, the β-spectrum is being scrutinised for general neutrino interactions, thus enabling a broad search for novel interactions. Here, we present first preliminary constraints based on the second measurement campaign.

Název v anglickém jazyce

Probing Physics Beyond the Neutrino Mass at the KATRIN Experiment

Popis výsledku anglicky

Neutrinos present a number of unanswered questions and are a leading candidate for the potential hiding place of other new physics phenomena. Various of these hidden signatures of new physics can be explored with the KATRIN experiment. The principal objective of KATRIN is to quantify the neutrino mass through precision spectroscopy of tritium β-decay. Recently, KATRIN has improved the upper bound on the effective electron-neutrino mass to 0.45 eV at 90 % CL and is continuing to take data until end of 2025. Further, beyond the neutrino mass investigations involve the search for specific Lorentz invariance-violating parameters, that are only accessible via interaction processes such as the β-decay. Improved limits of the respective parameters have been obtained, solely based on the first measurement campaign. Additionally, the possible existence of an eV-scale sterile neutrino is being probed. Its existence is today predominantly motivated by the Gallium anomaly and KATRIN is engaged in investigating the associated parameter space. Furthermore, the β-spectrum is being scrutinised for general neutrino interactions, thus enabling a broad search for novel interactions. Here, we present first preliminary constraints based on the second measurement campaign.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

—

Návaznosti

—

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of Science

ISBN

—

ISSN

1824-8039

e-ISSN

—

Počet stran výsledku

6

Strana od-do

171

Název nakladatele

Sissa Medilab srl

Místo vydání

Trieste

Místo konání akce

Praha

Datum konání akce

18. 7. 2024

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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