期刊
PHYSICAL REVIEW C
卷 81, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.81.024316
关键词
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资金
- US Department of Energy [DE-FC02-07ER41457, DE-FG02-96ER40963, DE-AC05-00OR22725]
- Polish Ministry of Science and Higher Education [N N 202 328234]
- Academy of Finland and University of Jyvaskyla within the FIDIPRO program
- National Center for Computational Sciences at Oak Ridge National Laboratory
We study one-quasiproton excitations in the rare-earth region in the framework of the nuclear density functional theory in the Skyrme-Hartree-Fock-Bogoliubov variant. The blocking prescription is implemented exactly, with the time-odd mean field fully taken into account. The equal filling approximation is compared with the exact blocking procedure. We show that both procedures are strictly equivalent when the time-odd channel is neglected and discuss how nuclear alignment properties affect the time-odd fields. The impact of time-odd fields on calculated one-quasiproton band-head energies is found to be rather small, of the order of 100-200 keV; hence, the equal filling approximation is sufficiently precise for most practical applications. The triaxial polarization of the core induced by the odd particle is studied. We also briefly discuss the occurrence of finite-size spin instabilities that are present in calculations for odd-mass nuclei when certain Skyrme functionals are employed.
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