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

Cause of discrepancy problem of calculated running sums for nuclear matrix elements of two-neutrino double-β decay

NázevTitle
Cause of discrepancy problem of calculated running sums for nuclear matrix elements of two-neutrino double-β decayCause of discrepancy problem of calculated running sums for nuclear matrix elements of two-neutrino double-β decay
Druh výsledkuResult type
Příspěvek ve sborníkuProceedings paper
AutořiAuthors
J. Terasaki
Klíčová slovaKeywords
neutrinoless double beta decay
KonferenceConference
Matrix Elements for the Double-beta-decay EXperiments (Prague, Czechia, 2023-09-04)
DOIDOI
10.1063/5.0204900
Časopis / citaceJournal / citation
In: AIP Conference Proceedings 3138, AIP Publishing, 2024, pp. 020022 · ISSN 1551-7616
RokYear
2024
JazykLanguage
eng
ZáznamyRecords
ProjektProject
Inženýrské aplikace fyziky mikrosvětaEngineering applications of microworld physics; LSM-CZ III - Podzemní laboratoř LSM - účast České republiky - LM2023063 (2023–2026)LSM-CZ III - Podzemní laboratoř LSM - účast České republiky - LM2023063 (2023–2026)
Citace ke staženíDownload citation
TXT · BibTeX

AbstraktAbstract

A problem has been reported four years ago in the running sum for the nuclear matrix element of the two-neutrino double-β decay of 136Xe. The shell model calculations showed a monotonically increasing behavior with respect to the excitation energy of the intermediate state, and the calculations of the quasiparticle random-phase approximation showed a much larger increase and decrease. Based on test calculations and an analytical discussion, I clarify that the cause of this problem is the difference in the interaction strength, and a relatively weak strength is reasonable.

A problem has been reported four years ago in the running sum for the nuclear matrix element of the two-neutrino double-β decay of 136Xe. The shell model calculations showed a monotonically increasing behavior with respect to the excitation energy of the intermediate state, and the calculations of the quasiparticle random-phase approximation showed a much larger increase and decrease. Based on test calculations and an analytical discussion, I clarify that the cause of this problem is the difference in the interaction strength, and a relatively weak strength is reasonable.

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