Search for Majoron-like particles with CUPID-0
CUPID-0 Collaboration. (2023). Search for Majoron-like particles with CUPID-0. Physical Review D, 107(3), Article 032006. https://doi.org/10.1103/PhysRevD.107.032006
Julkaistu sarjassa
Physical Review DTekijät
Päivämäärä
2023Tekijänoikeudet
© Published by the American Physical Society
We present the first search for the Majoron-emitting modes of the neutrinoless double β decay (0νββχ0) using scintillating cryogenic calorimeters. We analyzed the CUPID-0 Phase I data using a Bayesian approach to reconstruct the background sources activities, and evaluate the potential contribution of the 82Se 0νββχ0. We considered several possible theoretical models which predict the existence of a Majoron-like boson coupling to the neutrino. The energy spectra arising from the emission of such bosons in the neutrinoless double β decay have spectral indices n=1, 2, 3, or 7. We found no evidence of any of these decay modes, setting a lower limit (90% of credibility interval) on the half-life of 1.2×1023 yr in the case of n=1, 3.8×1022 yr for n=2, 1.4×1022 yr for n=3 and 2.2×1021 yr for n=7. These are the best limits on the 0νββχ0 half-life of the 82Se, and demonstrate the potentiality of the CUPID-0 technology in this field.
Julkaisija
American Physical Society (APS)ISSN Hae Julkaisufoorumista
2470-0010Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/177079136
Metadata
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Rahoittaja(t)
Suomen AkatemiaRahoitusohjelmat(t)
Akatemiatutkijan tutkimuskulut, SA; Akatemiatutkija, SALisätietoja rahoituksesta
This work was partially supported by the European Research Council (Grant No. FP7/2007-2013) under Low-background Underground Cryogenic Installation For Elusive Rates Contract No. 247115. This work was supported by the Academy of Finland, Grants No. 314733, No. 320062, and No. 345869.Lisenssi
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