GT strengths studied by (3He, t) reactions and nuclear matrix elements for double beta decays
1997; Elsevier BV; Volume: 394; Issue: 1-2 Linguagem: Inglês
10.1016/s0370-2693(96)01659-0
ISSN1873-2445
AutoresH. Akimune, H. Ejiri, M̄. Fujiwara, I. Daito, T. Inomata, R. Hazama, A. Tamii, Hidenori Toyokawa, M. Yosoi,
Tópico(s)Quantum, superfluid, helium dynamics
ResumoGT matrix elements MSν for transitions of 100Mo(0+) → 100Tc(1+) and 116Cd(0+) → 116In(1+) were obtained by measuring (3He, t) reactions on 100Mo and 116Cd, respectively. The values for MSν, together with the GT matrix elements MS′ν for 100Tc(1+) → 100Ru(0+) and 116In(1+) →116Sn(+), are applied to estimate the nuclear matrix elements MSS′2ν for the two neutrino double beta decays (2νββ) of 100Mo and 116Cd through the 1+ ground states in the intermediate nuclei of 100Tc and 116In, respectively. They are very close to the observed 2νββ matrix elements M2ν, consistent with recent experimental and theoretical analyses.
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