ÚTEFČVUT Ústav technické a experimentální fyziky ČVUT v PrazeInstitute of Experimental and Applied Physics, CTU in Prague

Bound-state double-beta decay

NázevTitle
Bound-state double-beta decayBound-state double-beta decay
Druh výsledkuResult type
Článek v časopiseJournal article
AutořiAuthors
A. Babič, D. Stefanik, M. Krivoruchenko, F. Šimkovic
Klíčová slovaKeywords
quantum-theory, neutrino
DOIDOI
10.1103/PhysRevC.98.065501
Časopis / citaceJournal / citation
Physical Review C 98(6), 065501 (2018) · ISSN 2469-9985
RokYear
2018
JazykLanguage
eng
ZáznamyRecords
ProjektProject
Podzemní laboratoř LSM - česká účast ve výzkumné infrastruktuře evropského významuUnderground laboratory LSM - Czech participation to European-level research infrastructure; Technologie potlačení pozadí, detektorové techniky v jaderné fyzice a jejich aplikaceTechnologies of background suppression, detection techniques in nuclear physics and their applications
CitovánoCited by
7 (INSPIRE-HEP)
2019: 12020: 02021: 12022: 22023: 12024: 02025: 12026: 1
Plný text (open access)Full text (open access)
http://link.aps.org/pdf/10.1103/PhysRevC.98.065501
Citace ke staženíDownload citation
TXT · BibTeX

AbstraktAbstract

We consider alternative modes of two-neutrino and neutrinoless double-beta decays in which one beta electron goes over to a continuous spectrum and the other occupies a vacant bound level of the daughter ion. We calculate the corresponding phase-space factors of the final states, estimate the partial decay rates, and derive the one- and two-electron energy spectra using relativistic many-electron wave functions of atoms provided by the multiconfiguration Dirac-Hartree-Fock package GRAsP2K. While the bound-state neutrinoless double-beta decays are strongly suppressed, their two-neutrino counterparts can be observed in the next-generation double-beta-decay experiments, most notably SuperNEMO.

We consider alternative modes of two-neutrino and neutrinoless double-beta decays in which one beta electron goes over to a continuous spectrum and the other occupies a vacant bound level of the daughter ion. We calculate the corresponding phase-space factors of the final states, estimate the partial decay rates, and derive the one- and two-electron energy spectra using relativistic many-electron wave functions of atoms provided by the multiconfiguration Dirac-Hartree-Fock package GRAsP2K. While the bound-state neutrinoless double-beta decays are strongly suppressed, their two-neutrino counterparts can be observed in the next-generation double-beta-decay experiments, most notably SuperNEMO.

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