High-precision Q-value measurement and nuclear matrix element calculations for the double-β decay of 98Mo
Nesterenko, D. A., Jokiniemi, L., Kotila, J., Kankainen, A., Ge, Z., Eronen, T., Rinta-Antila, S., & Suhonen, J. (2022). High-precision Q-value measurement and nuclear matrix element calculations for the double-β decay of 98Mo. European Physical Journal A, 58(3), Article 44. https://doi.org/10.1140/epja/s10050-022-00695-w
Published inEuropean Physical Journal A
Ge, Z. |
© The Author(s) 2022
The 98Mo double-beta decay Q-value has been measured, and the corresponding nuclear matrix elements of neutrinoless double-beta (0νββ) decay and the standard two-neutrino double-beta (2νββ) decay have been provided by nuclear theory. The double-beta decay Q-value has been determined as Qββ=113.668(68) keV using the JYFLTRAP Penning trap mass spectrometer. It is in agreement with the literature value, Qββ=109(6) keV, but almost 90 times more precise. Based on the measured Q-value, precise phase-space factors for 2νββ decay and 0νββ decay, needed in the half-life predictions, have been calculated. Furthermore, the involved nuclear matrix elements have been computed in the proton–neutron quasiparticle random-phase approximation (pnQRPA) and the microscopic interacting boson model (IBM-2) frameworks. Finally, predictions for the 2νββ decay are given, suggesting a much longer half-life than for the currently observed cases.
PublisherSpringer Science and Business Media LLC
ISSN Search the Publication Forum1434-6001
Publication in research information system
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Related funder(s)Academy of Finland; European Commission
Funding program(s)Academy Research Fellow, AoF; Academy Project, AoF; Research costs of Academy Research Fellow, AoF
The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
Additional information about fundingThis work has been supported by the Finnish Cultural Foundation (Grant No. 00210067) and the Academy of Finland (Grant Nos. 314733, 320062, 318043, 295207 and 327629). The funding from the European Union’s Horizon 2020 research and innovation programme under Grant agreement No. 771036 (ERC CoG MAIDEN) is gratefully acknowledged. Open Access funding provided by University of Jyväskylä (JYU).
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