High-resolution 100Mo(3He,t)100Tc charge-exchange experiment and the impact on double-
High-resolution 100Mo(3He,t)100Tc charge-exchange experiment and the impact on double-
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高分辨率100Mo(3He,t)100Tc电荷交换实验及其对双电的影响
DOI：
10.1103/physrevc.86.044309
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发表时间：
2012
影响因子：
3.1
通讯作者：
et al.
中科院分区：
文献类型：
--
作者：
J.H. Thies;T. Adachi;M. Dozono;H. Ejiri;D. Frekers;H. Fujita;Y. Fujita;M. Fujiwara;E.-W. Grewe;K. Hatanaka;P. Heinrichs;et al.
在双β衰变核Mo的高分辨电荷交换实验中研究了Gamow-Teller（GT）强度分布。实验是在大坂大学核物理研究中心（RCNP）用420 MeV入射He束和Grand Raiden磁谱仪进行的。最终达到33 keV的能量分辨率。结果发现，几乎所有的低能量（高达MeV）的强度集中在基态过渡到Tc，这是解释为特定的中子和质子的子壳层占位的结果。讨论了双中微子双β衰变对矩阵元的影响以及Mo作为中微子探测材料的应用。
The Gamow-Teller (GT) strength distribution has been investigated in a high-resolution (He,) charge-exchange experiment on the double-beta () decaying nucleusMo. The experiment was carried out at the Osaka University Research Center for Nuclear Physics (RCNP) with a 420 MeV incidentHe 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 toMeV)strength is concentrated in the ground-state transition toTc, 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 () decay and the use ofMo as a neutrino detection material is discussed.