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Search for keV-scale sterile neutrinos with the first KATRIN data

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F23%3A00577587" target="_blank" >RIV/61389005:_____/23:00577587 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.1140/epjc/s10052-023-11818-y" target="_blank" >https://doi.org/10.1140/epjc/s10052-023-11818-y</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1140/epjc/s10052-023-11818-y" target="_blank" >10.1140/epjc/s10052-023-11818-y</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Search for keV-scale sterile neutrinos with the first KATRIN data

  • Original language description

    In this work we present a keV-scale sterile-neutrino search with a low-tritium-activity data set of the KATRIN experiment, acquired in a commissioning run in 2018. KATRIN performs a spectroscopic measurement of the tritium beta-decay spectrum with the main goal of directly determining the effective electron anti-neutrino mass. During this commissioning phase a lower tritium activity facilitated the measurement of a wider part of the tritium spectrum and thus the search for sterile neutrinos with a mass of up to 1.6 keV. We do not find a signal and set an exclusion limit on the sterile-to-active mixing amplitude of sin(2) theta < 5 x 10(-4) (95% C.L.) at a mass of 0.3 keV. This result improves current laboratory-based bounds in the sterile-neutrino mass range between 0.1 and 1.0 keV.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10303 - Particles and field physics

Result continuities

  • Project

    <a href="/en/project/LTT19005" target="_blank" >LTT19005: Czech Participation at the International Experiment KATRIN</a><br>

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2023

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    European Physical Journal C

  • ISSN

    1434-6044

  • e-ISSN

    1434-6052

  • Volume of the periodical

    83

  • Issue of the periodical within the volume

    8

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    12

  • Pages from-to

    763

  • UT code for WoS article

    001062421500009

  • EID of the result in the Scopus database

    2-s2.0-85169159426