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New measurement of double- β decays of Mo 100 to excited states of Ru 100 with the CUPID-Mo experiment

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A90263%2F23%3A00371303" target="_blank" >RIV/68407700:90263/23:00371303 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.1103/PhysRevC.107.025503" target="_blank" >https://doi.org/10.1103/PhysRevC.107.025503</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1103/PhysRevC.107.025503" target="_blank" >10.1103/PhysRevC.107.025503</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    New measurement of double- β decays of Mo 100 to excited states of Ru 100 with the CUPID-Mo experiment

  • Original language description

    The CUPID-Mo experiment, located at the Laboratoire Souterrain de Modane (France), was a demonstrator experiment for CUPID. It consisted of an array of 20 Li-2 Mo-100 O-4 (LMO) calorimeters, each equipped with a Ge light detector for particle identification. In this work, we present the result of a search for two-neutrino and neutrinoless double-beta decays of Mo-100 to the first 0(+) and 2(+) excited states of Ru-100 using the full CUPID-Mo exposure (2.71 kg yr of LMO). We measure the half-life of 2 nu beta beta decay to the 0(1)(+) state as T-1/2(2 nu -> 01+) = (7.5 +/- 1 0.8 (stat.)(-0.3)(+0.4) (syst.)) x 10(20) yr. The bolometric technique enables measurement of the electron energies as well as the gamma rays from nuclear deexcitation and this allows us to set new limits on the two-neutrino decay to the 2(1)(+) state of T-1/2(2 nu -> 21+) > 4.4 x 10(21) yr (90% c.i.) and on the neutrinoless modes of T-1/2(0 nu -> 21+) > 2.1 x 10(23) yr (90% c.i.), T-1/2(0 nu -> 01+) > 1.2 x 10(23) yr (90% c.i.). Information on the electrons' spectral shape is obtained, which allows us to 1 make the first comparison of the single and higher state dominance 2 nu beta beta decay models for the 0(1)(+) excited state of Ru-100.

  • 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

    10304 - Nuclear physics

Result continuities

  • Project

  • Continuities

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

    PHYSICAL REVIEW C

  • ISSN

    2469-9985

  • e-ISSN

    2469-9993

  • Volume of the periodical

    107

  • Issue of the periodical within the volume

    2

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    20

  • Pages from-to

    "025503-1"-"025503-20"

  • UT code for WoS article

    000951103500002

  • EID of the result in the Scopus database

    2-s2.0-85149640698