Surface-restricted effective interactions in a shell model application toSr88

1976 ◽  
Vol 13 (4) ◽  
pp. 1709-1719 ◽  
Author(s):  
N. Auerbach ◽  
J. P. Vary
Keyword(s):  
Shell Model ◽  
Model Application ◽  
Effective Interactions

Electroweak Bosons, Leptons and Han-Nambu Quarks in a Unified Spinor-Isospinor Preon Field Model

1986 ◽  
Vol 41 (12) ◽  
pp. 1399-1411
Author(s):  
H. Stumpf
Keyword(s):  
Shell Model ◽  
Bound States ◽  
First Generation ◽  
Composite Fermions ◽  
Energy Limit ◽  
Mapping Procedure ◽  
Effective Interactions ◽  
Yang Mills ◽  
Effective Dynamics ◽  
Left Handed

The model is defined by a selfregularizing nonlinear spinor-isospinor preon field equation and all observable (elementary and non-elementary) particles are assumed to be bound states o f the quantized preon field. In a series o f preceding papers this model was extensively studied. In particular for com posite electroweak bosons the Yang-Mills dynamics was derived as the effective dynamics o f these bosons. In this paper the first generation o f com posite leptons and com posite Han-Nam bu quarks is introduced and together with electroweak bosons, these particles are interpreted as “shell model” states o f the underlying preon field. The choice o f the shell model states is justified by deriving the effective fermion-boson coupling and demonstrating its equivalence with the phenom enological electroweak coupling terms o f the Weinberg-Salam model. The investigation is restricted to the left-handed parts o f the composite fermions. Color is revealed to be a hidden orbital angular momentum in the shell model and hypercharge follows from the effective coupling. The techniques o f deriving effective interactions is a “weak mapping” procedure and the calculations are done in the “low” energy limit.

HYPERNUCLEAR PHYSICS STUDIED WITH THE SHELL AND CLUSTER MODELS

2009 ◽  
Vol 24 (11) ◽  
pp. 2091-2100 ◽  
Author(s):  
TOSHIO MOTOBA
Keyword(s):  
Shell Model ◽  
Cluster Model ◽  
Cluster Models ◽  
Model Application ◽  
Hypernuclear Physics

Prospects of interesting hypernuclear structures are discussed for typical light p-shell systems with the cluster model application and also for the medium-heavy systems with shell-model applications. Corresponding to the recent experimental progress, importance of production reaction spectroscopy are emphasized.

A new theory of shell-model effective interactions

2002 ◽  
Vol 704 (1-4) ◽  
pp. 107-114 ◽  
Author(s):  
T.T.S. Kuo ◽  
S. Bogner ◽  
L. Coraggio
Keyword(s):  
Shell Model ◽  
Effective Interactions

scholarly journals Gamow-Teller strengths of some sd-shell nuclei in the shell model framework

2020 ◽  
Vol 66 (3 May-Jun) ◽  
pp. 330 ◽  
Author(s):  
S. M. Obaid ◽  
H. M. Tawfeek
Keyword(s):  
Shell Model ◽  
Model Space ◽  
Transition Strength ◽  
Model Framework ◽  
Model Calculations ◽  
Effective Interactions ◽  
Calculated Distribution ◽  
Gamow Teller ◽  
Sd Model ◽  
Strength Distributions

The nuclear Gamow-Teller (GT) transition strength distributions B(GT)have been studied for some sd-shell nuclei in the (3He, t) charge-exchangereactions. The shell model calculations were performed by employing theUSDA and USDB effective interactions in the sd-model space. The results of B(GT) calculations reproduce the the experimental Gamow-Tellerstrength distributions well, while the calculated distribution of summedGT transition strengths were closely reproduce the observed ones.

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