Description of nuclear structure effects in sub-barrier fusion by the interacting boson model

1991 ◽  
Vol 44 (1) ◽  
pp. 145-151 ◽  
Author(s):  
A. B. Balantekin ◽  
J. R. Bennett ◽  
N. Takigawa
2011 ◽  
Vol 8 (3) ◽  
pp. 772-780
Author(s):  
Baghdad Science Journal

The Nuclear structure of 110-116Cd isotopes was studied theoretically in the framework of the interacting boson model of IBM-l and IBM-2. The properties of the lowest mixed symmetry states such as the 1+, 2+ and 3+ levels produced by the IBM-2 model in the vibrational-limit U(5) of Cd - isotopes are studied in details. This analysis shows that the character of mixed symmetry of 2+ is shared between and states in 110-114Cd – isotopes, the large shar goes to s, while in isotope, the state is declared as a mixed symmetry state without sharing. This identification is confirmed by the percentage of F-spin contribution. The electromagnetic properties of E2 and Ml operators were investigated and the results were analyzed. Various values of eB in the IBM-l and fixed e?= 0.104 eb and e?=0.093 e.b in the IBM-2 are used to generate the B(E2) and Q(2+). Fixed values of g? =0.31?N and g? =-0.31?N were adopted to generate the B(Ml) and ?(E2/ Ml) mixing ratios. The small values of ?(E2/Ml) which obtained for transition from MS- states to those of full symmetry support the conclusion that there may be a strong Ml transition between these states.


Author(s):  
Huda H. Kassim ◽  
Amir A. Mohammed-Ali ◽  
Fadhil I. Sharrad ◽  
I. Hossain ◽  
Khalid S. Jassim

2015 ◽  
Vol 90 (8) ◽  
pp. 085303 ◽  
Author(s):  
M Saxena ◽  
J B Gupta ◽  
S Mandal

Pramana ◽  
1992 ◽  
Vol 39 (5) ◽  
pp. 413-491 ◽  
Author(s):  
Y Durga Devi ◽  
V Krishna Brahmam Kota

2019 ◽  
Vol 18 ◽  
pp. 37
Author(s):  
D. Bonatsos

Dynamical symmetries have played a central role for many years in the study of nuclear structure. Recently, the concepts of Partial Dynamical Symmetry (PDS) and Quasi-Dynamical Symmetry (QDS) have been introduced. We shall discuss examples of PDS and QDS appearing in the large boson number limit of the Interacting Boson Mod


2019 ◽  
Vol 14 (7) ◽  
pp. 9978-9983
Author(s):  
Kahtan Adnan Hussain ◽  
Hussein Abdalkareem Hussein ◽  
Mustafa Kamil Khaleel

2009 ◽  
Vol 18 (04) ◽  
pp. 1058-1061 ◽  
Author(s):  
MICHAL MACEK ◽  
PAVEL STRÁNSKÝ ◽  
PAVEL CEJNAR

A method by Peres is used to represent spectra of the interacting boson model as lattices in the plane of energy versus an arbitrary observable average (or variance). Ordered (disordered) lattices are signatures of regularity (chaos) in both quantum and classical dynamics. The method is also apt to disclose exact or approximate dynamical symmetry.


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