Электронный каталог

Статья

Hashim, I.H.
Measurements of Ordinary Muon Capture Rates on *1*0*0M and Natural Mo for Astro-Antineutrinos and Double-*b Decays / I.H.Hashim, D.Zinatulina, M.Schirchenko, S.Kazartsev, [a.o.] // Physical Review C [Electronic resource]. – 2023. – Vol.108, No.1. – P.014618. – URL: https://doi.org/10.1103/PhysRevC.108.014618. – Bibliogr.:34.

Ordinary muon capture (OMC) rates are valuable for studying the neutrino nuclear responses of astrophysical antineutrinos and double-β decays (DBDs). Currently, there is interest in experimental studies of the OMC rates and their mass number (A) dependence for 100Mo and natural Mo. To obtain these rates, a negative muon beam from the MuSIC facility at the Research Center for Nuclear Physics (RCNP), Osaka University was utilized. The half-lives of trapped muons were measured by using a muon stopping signal from a scintillation counter and the time distribution of the OMC nuclear gamma rays and the muon-decay electrons by Ge detectors. The present measurements yielded OMC rates for enriched and natural molybdenum of Λ(100Mo)=(7.07±0.32)×106s−1 and Λ(natMo)=(9.66±0.44)×106s−1, respectively. The observed OMC rate for 100Mo is approximately 27% smaller than that for natural Mo due to the blocking effect of the excess neutrons on the proton-to-neutron transformation in OMC. The present experimental observation is consistent with the Goulard-Primakoff (GP) and Primakoff (P) empirical equations. The impacts of the present results on the astro-antineutrinos and double-β decays are discussed.



ОИЯИ = ОИЯИ (JINR)2023
Спец.(статьи,препринты) = С 346.1е - Нейтрино в космогонии и астрофизике
Спец.(статьи,препринты) = С 344.1х - Методы регистрации нейтрино
Спец.(статьи,препринты) = С 341 е - Ядерная астрофизика$
Спец.(статьи,препринты) = С 341.1б - Бета-распад и К-захват. Схемы распада и спектры
Бюллетени = 51/023