Temperature dependent relativistic mean field for highly excited hot nuclei

2000 ◽  
Vol 62 (5) ◽  
Author(s):  
Y. K. Gambhir ◽  
J. P. Maharana ◽  
G. A. Lalazissis ◽  
C. P. Panos ◽  
P. Ring
Keyword(s):  
Mean Field ◽  
Temperature Dependent ◽  
Relativistic Mean Field ◽  
Hot Nuclei

scholarly journals T-dependent RMF Model Applied to Ternary Fission Studies

2021 ◽  
Vol 9 (1) ◽  
pp. 95-101
Author(s):  
C. Kokila ◽  
C. Karthika ◽  
M. Balasubramaniam
Keyword(s):  
Level Density ◽  
Maximum Yield ◽  
Mean Field ◽  
Ternary Fission ◽  
Nuclear Level Density ◽  
Temperature Dependent ◽  
Yield Distribution ◽  
Relativistic Mean Field ◽  
Specific Temperature ◽  
Initial Results

Ternary decay is comparatively a rare phenomenon. The yield distribution for the thermal neutroninduced fission of 236U was investigated within the Temperature-dependent Relativistic Mean Field (TRMF) approach and statistical theory. Binding energy obtained from TRMF for the ground state and at a specific temperature is used to evaluate the fragment excitation energy, which is needed to calculate the nuclear level density. Using the ternary convolution, the yield for α-accompanied fission of 236U* is calculated. Initial results are presented which shows a maximum yield for the fragment pair Tc + Ag +α. Further, the ternary pre-existence probability for the spontaneous fission of 236U was studied considering fixed third fragments of α,10Be and 14C using the area of the overlapping region. No significant change in the yield distribution was observed when fragment deformations are considered. However, the heavy group for the probable pair remains as 132Sn with a change in mass number of the lighter fragment. 

scholarly journals Relative fragmentation in ternary systems within the temperature-dependent relativistic mean-field approach

2017 ◽  
Vol 95 (6) ◽  
Author(s):  
M. T. Senthil Kannan ◽  
Bharat Kumar ◽  
M. Balasubramaniam ◽  
B. K. Agrawal ◽  
S. K. Patra
Keyword(s):  
Mean Field ◽  
Ternary Systems ◽  
Temperature Dependent ◽  
Field Approach ◽  
Relativistic Mean Field

EVOLUTION OF SHELL STRUCTURE IN NUCLEI

2011 ◽  
Vol 20 (08) ◽  
pp. 1663-1675 ◽  
Author(s):  
A. BHAGWAT ◽  
Y. K. GAMBHIR
Keyword(s):  
Shell Structure ◽  
Crucial Role ◽  
Field Model ◽  
Mean Field ◽  
Mass Region ◽  
The Other ◽  
Mean Field Model ◽  
Relativistic Mean Field ◽  
Shell Closures ◽  
Low Mass

Systematic investigations of the pairing and two-neutron separation energies which play a crucial role in the evolution of shell structure in nuclei, are carried out within the framework of relativistic mean-field model. The shell closures are found to be robust, as expected, up to the lead region. New shell closures appear in low mass region. In the superheavy region, on the other hand, it is found that the shell closures are not as robust, and they depend on the particular combinations of neutron and proton numbers. Effect of deformation on the shell structure is found to be marginal.

TABLE OF GROUND STATE PROPERTIES OF NUCLEI IN THE RMF MODEL

2013 ◽  
Vol 28 (16) ◽  
pp. 1350068 ◽  
Author(s):  
TUNCAY BAYRAM ◽  
A. HAKAN YILMAZ
Keyword(s):  
Ground State ◽  
Mean Field ◽  
Properties Of Nuclei ◽  
Relativistic Mean Field ◽  
Ground State Properties ◽  
Pairing Correlations ◽  
Ground State Energies ◽  
Rmf Model

The ground state energies, sizes and deformations of 1897 even–even nuclei with 10≤Z ≤110 have been carried out by using the Relativistic Mean Field (RMF) model. In the present calculations, the nonlinear RMF force NL3* recent refitted version of the NL3 force has been used. The BCS (Bardeen–Cooper–Schrieffer) formalism with constant gap approximation has been taken into account for pairing correlations. The predictions of RMF model for the ground state properties of some nuclei have been discussed in detail.

Relativistic mean field description of Zn and Ge nuclei

1999 ◽  
Vol 59 (5) ◽  
pp. 2541-2545 ◽  
Author(s):  
G. Gangopadhyay
Keyword(s):  
Mean Field ◽  
Relativistic Mean Field

RELATIVISTIC MEAN FIELD THEORETICAL FOUNDATION OF THE DROPLET MODEL FOR NUCLEI

2002 ◽  
Vol 11 (01) ◽  
pp. 55-65 ◽  
Author(s):  
CHUN-YUAN GAO ◽  
QI-REN ZHANG
Keyword(s):  
Mass Formula ◽  
Energy Surface ◽  
Theoretical Foundation ◽  
Mean Field Theory ◽  
Mean Field ◽  
Binding Energies ◽  
Droplet Model ◽  
Relativistic Mean Field ◽  
Theoretical Foundations ◽  
Type Mass

The binding energies per-nucleon for 1654 nuclei, whose mass numbers range from 16 to 263 and charge numbers range from 8 to 106, are calculated by the relativistic mean field theory, with finite nucleon size effect being taken into account. The calculated energy surface goes through the middle of experimental points, and the root mean square deviation for the binding energies per-nucleon is 0.08163 MeV. The numerical results may be well simulated by a droplet model type mass formula. The droplet model is therefore put on the relativistic mean field theoretical foundations.

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