期刊
PHYSICAL REVIEW LETTERS
卷 113, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.113.042502
关键词
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资金
- Rare Isotope Science Pro - MSIP
- NRF of Korea
- Priority Centers Research Program in Korea [2009-0093817]
- OTKA [K100835]
- U.S. DOE, Office of Nuclear Physics [DE-AC02- 06CH11357]
- Spanish Ministerio de Ciencia e Innovacion [FPA2009-13377-C02, FPA2011-29854-C04]
- European Commission through the Marie Curie Actions call FP7 [300096]
- German BMBF [05P12PKFNE]
- JSPS KAKENHI [24740188, 25247045]
- MSIP of Korea
- [NRF-2012R1A1A1041763]
- Grants-in-Aid for Scientific Research [23244049, 13J01876, 26800117, 25247045, 24105004, 24740188] Funding Source: KAKEN
A new isomer with a half-life of 23.0(8) ms has been identified at 2406 keV in Pd-126 and is proposed to have a spin and parity of 10(+) with a maximally aligned configuration comprising two neutron holes in the 1h(11/2) orbit. In addition to an internal-decay branch through a hindered electric octupole transition, beta decay from the long-lived isomer was observed to populate excited states at high spins in Ag-126. The smaller energy difference between the 10(+) and 7(-) isomers in Pd-126 than in the heavier N = 80 isotones can be interpreted as being ascribed to the monopole shift of the 1h(11/2) neutron orbit. The effects of the monopole interaction on the evolution of single-neutron energies below Sn-132 are discussed in terms of the central and tensor forces.
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