期刊
PHYSICAL REVIEW C
卷 95, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.95.014313
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资金
- Swedish Research Council
- European Community [HPRI-CT 1999-00019]
- Spanish MINECO [FPA2015-65035-P]
- Direct For Mathematical & Physical Scien
- Division Of Physics [1565546] Funding Source: National Science Foundation
The advanced time-delayed gamma gamma(t) method has been applied to determine half-lives of low-lying states in the N = 50 isotones Ru-94 and Pd-96. The inferred experimental E2 strengths for the 4(+) -> 2(+) transitions in the two nuclei show a dramatic deviation with respect to the shell model predictions in the (f(5/2), p, g(9/2)) proton hole space in Sn-100. The anomalous behavior can be ascribed to a breakdown of the seniority quantum number in the pi g(9/2)(n) configuration due to particle-hole excitations across the N = Z = 50 shell as confirmed by large-scale shell model calculations.
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