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Isospin dependence of ground state properties of A=20 isobars

DSpace at IIT Bombay

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Title Isospin dependence of ground state properties of A=20 isobars
 
Creator BHAGWAT, A
GAMBHIR, YK
 
Subject mean-field-theory
interaction cross-sections
hartree-bogoliubov description
neutron-halo
nuclear densities
exotic nuclei
finite nuclei
na isotopes
proton
radii
a=20 isobars
relativistic mean field
groundstate properties
reaction cross-section
 
Description The ground state nucleon (neutron and proton) distributions for A = 20 isobars (Z = 6-12) are investigated. For this purpose, the relativistic mean field equations are solved in the coordinate space and also by using the conventional basis expansion method. The pairing is treated in the simple constant gap approximation and also self consistently through the Bogoliubov transformation employing the realistic Gogny D1S interaction as well as the zero range density dependent effective interaction. The comparative study of the results thus obtained indicates the level and the extent of differences in the physical observables like binding energies, sizes, densities, etc. of these nuclei, arising due to the use of these different variants of solving the RMF/RHB equations. Though the results are qualitatively similar, the deviations do appear at a finer level, especially for large T-z (O-20 and N-20). The calculations also reveal mirror symmetry about T-z = 0 for all physical observables, which is in accordance with the experiment. The calculated nucleon densities are compared with those obtained by using a semi-phenomenological model that incorporates correctly the asymptotic behavior. The reaction cross-sections with these A = 20 isobars as projectiles incident on a C-12 target at 950 A MeV incident energy, calculated within the Glauber model using the RMF/RHB and model densities agree well with the experiment.
 
Publisher WORLD SCIENTIFIC PUBL CO PTE LTD
 
Date 2011-09-02T01:00:46Z
2011-12-26T12:59:53Z
2011-12-27T05:52:55Z
2011-09-02T01:00:46Z
2011-12-26T12:59:53Z
2011-12-27T05:52:55Z
2003
 
Type Article
 
Identifier INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS, 12(5), 725-745
0218-3013
http://dx.doi.org/10.1142/S021830130300151X
http://dspace.library.iitb.ac.in/xmlui/handle/10054/12920
http://hdl.handle.net/10054/12920
 
Language en