https://doi.org/10.1140/epja/i2016-16003-8
Regular Article - Theoretical Physics
Band-head spectra of low-energy single-particle excitations in some well-deformed, odd-mass heavy nuclei within a microscopic approach
1
Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
2
Univ. Bordeaux, CENBG, UMR5797, 33170, Gradignan, France
3
CNRS, IN2P3, CENBG, UMR5797, 33170, Gradignan, France
4
Division of Nuclear Physics, Ton Duc Thang University, Ho Chi Minh City, Vietnam
5
Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
6
Center of Research and Development, Duy Tan University, Danang, Vietnam
7
Center for Theoretical and Computational Physics, College of Education, Hue University, 34 Le Loi Street, Hue City, Vietnam
8
Vietnam National University, Hanoi University of Sciences, Hanoi, Vietnam
* e-mail: daoduyduc@tdt.edu.vn
Received:
4
July
2015
Accepted:
2
December
2015
Published online:
12
January
2016
In four well-deformed heavy odd nuclei, the energies of low-lying rotational band heads have been determined microscopically within a self-consistent Hartree-Fock-plus-BCS approach with blocking. A Skyrme nucleon-nucleon effective interaction has been used together with a seniority force to describe pairing correlations. Only such states which are phenomenologically deemed to be related to single-particle excitations have been considered. The polarization effects, including those associated with the genuine time-reversal symmetry breaking have been fully taken into account within our model assumptions. The calculated spectra are in reasonably good qualitative agreement with available data for the considered odd-neutron nuclei. This is not so much the case for the odd-proton nuclei. A potential explanation for such a difference in behavior is proposed.
© SIF, Springer-Verlag Berlin Heidelberg, 2016