期刊
PHYSICAL REVIEW C
卷 94, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.94.014306
关键词
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资金
- Scientific Discovery through Advanced Computing (SciDAC) program - US Department of Energy, Office of Science, Advanced Scientific Computing Research and Nuclear Physics [DE-SC0008641, ER41896]
- National Natural Science Foundation of China [11575148, 11475140, 11305134]
We present a generator-coordinate calculation, based on a relativistic energy-density functional, of the low-lying spectra in the isotopes Nd-150 and Sm-150 and of the nuclear matrix element that governs the neutrinoless double-beta decay of the first isotope to the second. We carefully examine the impact of octupole correlations on both nuclear structure and the double-beta decay matrix element. Octupole correlations turn out to reduce quadrupole collectivity in both nuclei. Shape fluctuations, however, dilute the effects of octupole deformation on the double-beta decay matrix element, so that the overall octupole-induced quenching is only about 7%.
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