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Anti-bubble effect of temperature \& deformation: a systematic study for nuclei across all mass regions between A $=$ 20$-$300

Authors :
Saxena, G.
Kumawat, M.
Aggarwal, Mamta
Source :
Physics Letters B, 2018
Publication Year :
2018

Abstract

Temperature dependent relativistic mean-field (RMF) plus BCS approach has been used for the first time to investigate the anti-bubble effect of the temperature and deformation in the light, medium-heavy and superheavy nuclei. Influence of temperature is studied on density distribution, charge form-factor, single particle (s.p.) energies, occupancy, deformation and the depletion fraction (DF). At T $=$ 0, the quenching effect of deformation is predominant. DF is found usually less in oblate deformation than in prolate. DF decreases with increasing prolate deformation even though the 2s-orbit is empty which shows the role of deformation in central depletion apart from the unoccupancy in s-orbit as is usually believed. As T increases, the occupancy of s-orbit increases, shell structure melts, the deformation vanishes and the weakening of central depletion is solely due to the temperature. The bubble effect is eliminated at T $\approx$ 3$-$5 MeV as indicated by DF and the charge form factor. The temperature effect is found less prominent in superheavy bubble nuclei where the role of shell effects is indicated.<br />Comment: 9 pages, 9 figures, Accepted

Subjects

Subjects :
Nuclear Theory
Nuclear Experiment

Details

Database :
arXiv
Journal :
Physics Letters B, 2018
Publication Type :
Report
Accession number :
edsarx.1811.00949
Document Type :
Working Paper
Full Text :
https://doi.org/10.1016/j.physletb.2018.10.062