On the inclusion of core-excitations in the quasi-particle theory of nuclear structure

1966 ◽  
Vol 191 (4) ◽  
pp. 381-394 ◽  
Author(s):  
E. Werner
Keyword(s):  
Nuclear Structure ◽  
Particle Theory ◽  
Quasi Particle ◽  
Core Excitations

Microscopic study of nuclear structure of odd-odd 128–138I nuclei within the framework of projected shell model for positive- and negative-parity states

2020 ◽  
Vol 35 (29) ◽  
pp. 2050243 ◽  
Author(s):  
Vikesh Kumar ◽  
Shashi K. Dhiman
Keyword(s):  
Shell Model ◽  
Nuclear Structure ◽  
Microscopic Study ◽  
Single Particle ◽  
Negative Parity ◽  
Model Analysis ◽  
Energy Splitting ◽  
Projected Shell Model ◽  
Band Structures ◽  
Quasi Particle

We have done the microscopic study of neutron-rich odd-odd iodine isotopes within the framework of projected shell model. Odd-odd nuclei are the best candidates for studying possible structure variations away from the valley of stability. We used the projected shell model, in which the deformed Nilsson single-particle states are being used for the construction of model basis. We studied the band properties of odd-odd I[Formula: see text](Z [Formula: see text] 53) isotopes with neutron numbers N [Formula: see text] 75, 77, 79, 81, 83 and 85. Using model analysis, we presented the low-lying positive- and negative-parity states of these nuclei. In these isotopes, the band structures have been analyzed in terms of quasi-particle configurations and comparative presentation of yrast levels is discussed. The phenomenon of yrast energy splitting is also studied in this work.

scholarly journals NUCLEAR STRUCTURE STUDY WITH CORE EXCITATIONS IN Ni REGION: FOR fpg9/2 SPACE

2012 ◽  
Vol 27 (13) ◽  
pp. 1250061 ◽  
Author(s):  
P. C. SRIVASTAVA
Keyword(s):  
Shell Model ◽  
Nuclear Structure ◽  
Structure Study ◽  
Experimental Results ◽  
Matrix Elements ◽  
Model Calculations ◽  
Nuclear Structure Study ◽  
Core Excitations ◽  
Cu And Zn ◽  
Zn Isotopes

Shell model calculations for Ni, Cu and Zn isotopes by modifying fpg interaction due to Sorlin et al. [Phys. Rev. Lett. 88, 092501 (2002)] have been reported. In the present work, 28 two-body matrix elements of the earlier interaction have been modified. Present interaction is able to explain new experimental results for this region.

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