Corrections to the free-nucleon values of the single-particle matrix elements of theM1and Gamow-Teller operators, from a comparison of shell-model predictions withsd-shell data

1983 ◽  
Vol 28 (6) ◽  
pp. 2397-2413 ◽  
Author(s):  
B. A. Brown ◽  
B. H. Wildenthal
Keyword(s):  
Shell Model ◽  
Single Particle ◽  
Matrix Elements ◽  
Free Nucleon ◽  
Model Predictions ◽  
Gamow Teller

scholarly journals Modification of tensor force in 0p-shell model effective interaction

2020 ◽  
Vol 29 (09) ◽  
pp. 2050069
Author(s):  
Kanhaiya Jha ◽  
Pawan Kumar ◽  
Shahariar Sarkar ◽  
P. K. Raina
Keyword(s):  
Shell Model ◽  
Single Particle ◽  
Effective Interaction ◽  
Tensor Force ◽  
Experimental Results ◽  
Matrix Elements ◽  
Excitation Spectra ◽  
Electromagnetic Moments ◽  
Gamow Teller ◽  
Normal Parity

In many shell model interactions, the tensor force monopole matrix elements often retain systematic trends originating in the bare tensor force. However, in this work, we find that Isospin [Formula: see text] tensor force monopole matrix elements of widely used p-shell effective interaction CK(8–16) do not share these systematic. We correct these discrepancies by modifying [Formula: see text] tensor force two-body matrix elements (TBMEs) of CK(8–16) by the analytically calculated tensor force TBMEs. With some additional modification of single-particle energies and TBMEs, the revised effective interaction is named as CKN. The effective interaction CKN has been tested for the calculations of p-shell nuclei of normal parity states from various physics viewpoints such as excitation spectra, electromagnetic moments, and electromagnetic and Gamow–Teller (GT) transitions. The obtained results are found to be satisfactory with respect to the experimental results.

scholarly journals Gamow-Teller beta decay ofNa29and comparison with shell-model predictions

1987 ◽  
Vol 36 (2) ◽  
pp. 765-773 ◽  
Author(s):  
P. Baumann ◽  
Ph. Dessagne ◽  
A. Huck ◽  
G. Klotz ◽  
A. Knipper ◽  
...  
Keyword(s):  
Shell Model ◽  
Beta Decay ◽  
Model Predictions ◽  
Gamow Teller

Corrections to the single-particle M1 and Gamow-Teller matrix elements

1983 ◽  
Vol 399 (2) ◽  
pp. 334-364 ◽  
Author(s):  
I.S. Towner ◽  
F.C. Khanna
Keyword(s):  
Single Particle ◽  
Matrix Elements ◽  
Gamow Teller

Analytical Derivations of Single-Particle Matrix Elements in Nuclear Shell Model

2016 ◽  
Vol 66 (1) ◽  
pp. 104-114
Author(s):  
Aziz H. Fatah ◽  
R.A. Radhi ◽  
Nzar R. Abdullah
Keyword(s):  
Shell Model ◽  
Single Particle ◽  
Nuclear Shell Model ◽  
Matrix Elements ◽  
Nuclear Shell

scholarly journals Delayed Alpha Spectra from the Beta Decay of 8Li and 8B

1989 ◽  
Vol 42 (1) ◽  
pp. 25 ◽  
Author(s):  
FC Barker
Keyword(s):  
Phase Shift ◽  
Shell Model ◽  
Satisfactory Agreement ◽  
Beta Decay ◽  
Matrix Elements ◽  
R Matrix ◽  
Intruder State ◽  
Parameter Values ◽  
Gamow Teller ◽  
D Wave

Many-level R-matrix fits are made to the ()(-()( scattering d-wave phase shift and to ()(-spectra from BLi and BB ,8-decay measured by Wilkinson and Alburger (1971). With the requirement that the parameter values are the same in the fits to the phase shift and the ()(-spectra data, the best overall fits are obtained for a channel radius of about 6�5 fm, implying a broad 2+ intruder state of BBe at about 9 MeV. There is satisfactory agreement between the Gamow-Teller matrix elements extracted from the fits and shell model values.

Gamow-Teller matrix elements of mirror nuclei in the relativistic scalar-vector shell model

1990 ◽  
Vol 247 (4) ◽  
pp. 485-487 ◽  
Author(s):  
Y. Nedjadi ◽  
J.R. Rook
Keyword(s):  
Shell Model ◽  
Matrix Elements ◽  
Gamow Teller

A shell-model study of Gamow-Teller matrix elements in the shell nuclei

1987 ◽  
Vol 470 (2) ◽  
pp. 328-338 ◽  
Author(s):  
H. Miyatake ◽  
K. Ogawa ◽  
T. Shinozuka ◽  
M. Fujioka
Keyword(s):  
Shell Model ◽  
Matrix Elements ◽  
Model Study ◽  
Gamow Teller

scholarly journals Neutrinoless double beta nuclear matrix elements around mass 80 in the nuclear shell-model

2015 ◽  
Vol 93 ◽  
pp. 01055
Author(s):  
N. Yoshinaga ◽  
K. Higashiyama ◽  
D. Taguchi ◽  
E. Teruya
Keyword(s):  
Shell Model ◽  
Nuclear Matrix ◽  
Nuclear Shell Model ◽  
Matrix Elements ◽  
Nuclear Shell

Matrix elements of shell model Hamiltonians in multiple angular momentum coupling schemes

1988 ◽  
Vol 38 (3) ◽  
pp. 1440-1447 ◽  
Author(s):  
Akiva Novoselsky ◽  
Michel Vallieres ◽  
Robert Gilmore
Keyword(s):  
Angular Momentum ◽  
Shell Model ◽  
Matrix Elements ◽  
Angular Momentum Coupling ◽  
Momentum Coupling ◽  
Model Hamiltonians
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