scholarly journals Relativistic energy density functional description of shape transitions in superheavy nuclei

2012 ◽  
Vol 86 (2) ◽  
Author(s):  
V. Prassa ◽  
T. Nikšić ◽  
G. A. Lalazissis ◽  
D. Vretenar
Keyword(s):  
Energy Density ◽  
Density Functional ◽  
Superheavy Nuclei ◽  
Relativistic Energy ◽  
Energy Density Functional ◽  
Functional Description ◽  
Shape Transitions

scholarly journals Nuclear magnetic transitions in the relativistic energy density functional approach

2021 ◽  
Vol 252 ◽  
pp. 02002
Author(s):  
Nils Paar ◽  
Goran Kružić ◽  
Tomohiro Oishi
Keyword(s):  
Energy Density ◽  
Density Functional ◽  
Open Shell ◽  
Experimental Investigations ◽  
Transition Strength ◽  
Relativistic Energy ◽  
Energy Density Functional ◽  
Spin Orbital ◽  
Novel Theory ◽  
Pairing Correlations

Recently a novel theory framework has been established for description of magnetic dipole (M1) transitions in finite nuclei, based on relativistic nuclear energy density functional with point coupling interactions. The properties of M1 transitions have been studied, including the sum rules, spin, orbital, isoscalar and isovector M1 transition strengths in magic and open shell nuclei. It is shown that pairing correlations and spinorbit interaction plays an important role in the description of M1 transition strength distributions. The analysis of the evolution of M1 transition properties in the isotope chain 100-140 Sn shows the interplay between single and double-peak structures, determined by the evolution of single-particle states, their occupations governed by the pairing correlations, and two-quasiparticle transitions involved. Comparison of the calculated B(M1) transition strength with recent data from inelastic proton scattering on 112-124 Sn, shows that quenching of the g factors geff/gfree =0.80-0.93 is required to reproduce the experimental data. Further experimental investigations are needed to determine accurately the quenching factor.

scholarly journals PAIRING PROPERTIES OF SUPERHEAVY NUCLEI

2007 ◽  
Vol 16 (02) ◽  
pp. 310-319 ◽  
Author(s):  
A. STASZCZAK ◽  
J. DOBACZEWSKI ◽  
W. NAZAREWICZ
Keyword(s):  
Energy Density ◽  
Density Dependence ◽  
Density Functional ◽  
Specific Form ◽  
Superheavy Nuclei ◽  
Pairing Interaction ◽  
Energy Density Functional ◽  
Hartree Fock ◽  
Zero Range ◽  
The Impact

Pairing properties of even-even superheavy N = 184 isotones are studied within the Skyrme-Hartree-Fock+BCS approach. In the particle-hole channel we take the Skyrme energy density functional SLy4, while in the particle-particle channel we employ the seniority pairing force and zero-range δ-interactions with different forms of density dependence. We conclude that the calculated static fission trajectories weakly depend on the specific form of the δ-pairing interaction. We also investigate the impact of triaxiality on the inner fission barrier and find a rather strong Z dependence of the effect.

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