Updated evaluation of potential ultralow Q -value β -decay candidates
Updated evaluation of potential ultralow Q -value β -decay candidates
复制标题
对潜在超低 Q 值 β 衰变候选者的更新评估
DOI：
10.1103/physrevc.107.015504
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发表时间：
2023
影响因子：
3.1
通讯作者：
Redshaw, M.
中科院分区：
文献类型：
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作者：
Keblbeck, D. K.;Bhandari, R.;Gamage, N. D.;Horana Gamage, M.;Leach, K. G.;Mougeot, X.;Redshaw, M.
“超低”值衰变是由于它们的衰变能量低于keV而被称为超低值衰变。当母核衰变到子核的激发态时，这种低能量衰变是可能的，其能量接近值。这些衰变作为中微子质量测定实验的潜在新候选者和作为核衰变过程中原子干涉效应研究的试验场是令人感兴趣的。在本文中，我们提供了原子质量数据和核能级数据的最新评估，以确定潜在的超低值衰变候选者。对于这些候选者中的许多人来说，需要更精确和准确的原子质量数据来确定潜在的超低衰变分支的值是否在能量上是允许的，并且实际上是超低的。相关的精确原子质量测量可以通过潘宁阱质谱法实现。
“Ultralow”-valuedecays are referred to as such due to their low decay energies of less thankeV. Such a low energy decay is possible when the parent nucleus decays to an excited state in the daughter, with an energy close to that of thevalue. These decays are of interest as potential new candidates for neutrino mass determination experiments and as a testing ground for studies of atomic interference effects in the nuclear decay process. In this paper, we provide an updated evaluation of atomic mass data and nuclear energy-level data to identify potential ultralow-value-decay candidates. For many of these candidates, more precise and accurate atomic mass data is needed to determine if thevalue of the potential ultralow decay branch is energetically allowed and in fact ultralow. The relevant precise atomic mass measurements can be achieved via Penning trap mass spectrometry.