抄録
The Gamow-Teller (GT) strength distribution has been investigated in a high-resolution (3He,t) charge-exchange experiment on the double-beta (ββ) decaying nucleus 100Mo. The experiment was carried out at the Osaka University Research Center for Nuclear Physics (RCNP) with a 420 MeV incident 3He beam and the Grand Raiden magnetic spectrometer. A final-state energy resolution of 33 keV was achieved. It was found that nearly the entire low-energy (up to ≈4 MeV) GT- strength is concentrated in the ground-state transition to 100Tc, which is interpreted as a result of the particular neutron and proton sub-shell occupancies. The impact on the matrix elements for the two-neutrino double-beta (2νββ) decay and the use of 100Mo as a neutrino detection material is discussed.
本文言語 | 英語 |
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論文番号 | 044309 |
ジャーナル | Physical Review C - Nuclear Physics |
巻 | 86 |
号 | 4 |
DOI | |
出版ステータス | 出版済み - 08-10-2012 |
外部発表 | はい |
All Science Journal Classification (ASJC) codes
- 核物理学および高エネルギー物理学