Transition Strengths of Analogue States in A = 18 Nuclei

1972 ◽  
Vol 50 (16) ◽  
pp. 1791-1794 ◽  
Author(s):  
C. Rolfs
Keyword(s):  
Shell Model ◽  
Branching Ratio ◽  
Model Calculations ◽  
The Mean ◽  
Γ Ray

A search for the 3061 (2+, T = 1) → 1041 (0+, T = 1) keV γ-ray branch in 18F has been performed with the use of the capture reactions 14N(α,γ)18F at Ea = 1526 keV and 17O(p,γ)18F at EP = 741 keV. The observed branching ratio is 0.11 ± 0.03%. The mean life of the 3061 keV state was found to be < 1.5 fs. This E2 branch in 18F is compared with the analogue transitions in 18O and 18Ne as well as with shell model calculations.

FIRST γ-RAY SPECTROSCOPY AND ISOSPIN SYMMETRY STUDY OF THE N = Z - 2 NUCLEUS 44V

2010 ◽  
Vol 25 (21n23) ◽  
pp. 2028-2029 ◽  
Author(s):  
M. J. TAYLOR ◽  
M. A. BENTLEY ◽  
J. BROWN ◽  
R. WADSWORTH ◽  
P.E. KENT ◽  
...  
Keyword(s):  
Symmetry Breaking ◽  
Shell Model ◽  
Excited States ◽  
State Of The Art ◽  
Isospin Symmetry ◽  
Charge Symmetry Breaking ◽  
Charge Symmetry ◽  
Model Calculations ◽  
Γ Ray ◽  
First Time

Excited states in the Tz = -1 nucleus 44 V have been observed for the first time. The states have been identified through recoil-γ-γ coincidences and comparison with analogue states in the mirror nucleus 44 Sc . Mirror energy differences have been extracted and compared to state-of-the-art fp shell-model calculations which include charge symmetry breaking forces.

A Measurement of the Branching Ratio for the Gamma Transitions from the 4·235 MeV Level of 24Mg

1973 ◽  
Vol 26 (2) ◽  
pp. 257 ◽  
Author(s):  
D Branford
Keyword(s):  
Shell Model ◽  
Branching Ratio ◽  
Rotational Model ◽  
Model Calculations ◽  
Gamma Transitions ◽  
Bombarding Energy

The branching ratio for the y-transitions from the 4�235 MeV level of 24Mg has been measured following a study of the 23Na(p, y) resonances at 1021 and 1416 keV bombarding energy. The result, which is considerably more accurate than those reported previously, is compared with the predictions of the rotational model and shell model calculations.

SHELL STRUCTURE, COLLECTIVITY AND NUCLEAR SHAPES — RISING IN-BEAM EXPERIMENTS AT RELATIVISTIC ENERGIES

2006 ◽  
Vol 15 (07) ◽  
pp. 1495-1503
Author(s):  
◽  
PIETER DOORNENBAL
Keyword(s):  
High Resolution ◽  
Shell Model ◽  
Nuclear Structure ◽  
Shell Structure ◽  
Mirror Symmetry ◽  
Coulomb Excitation ◽  
Radioactive Beams ◽  
Model Calculations ◽  
Electromagnetic Transition ◽  
Γ Ray

The RISING fast beam campaign aims at high resolution γ-ray spectroscopy experiments with relativistic radioactive beams at GSI. The secondary beams produced by fragmentation or fission are used for Coulomb excitation or secondary fragmentation experiments to perform studies of nuclei far off stability. The physics phenomena studied with this method include nuclear structure experiments targeting at the evolution of shell structure toward the drip lines, mirror symmetry, collectivity and electromagnetic transition strengths. Example results of this fast beam campaign are presented and compared to various shell model calculations and nuclear structure models.

Grid Lifetime Measurements and Shell Model Calculations In 59Ni

1991 ◽  
Author(s):  
S. Ulbig ◽  
K. P. Lieb ◽  
H. G. Börner ◽  
S. J. Robinson ◽  
J. G. L. Booten
Keyword(s):  
Shell Model ◽  
Lifetime Measurements ◽  
Model Calculations

Low-lying Negative-parity Levels of 17N and 18N

1984 ◽  
Vol 37 (1) ◽  
pp. 17 ◽  
Author(s):  
FC Barker
Keyword(s):  
Shell Model ◽  
Weak Coupling ◽  
Coupling Model ◽  
Negative Parity ◽  
Positive Parity ◽  
Model Calculations

On the basis of a weak-coupling model, adjustments are made to the interactions used in the full shell model calculations of Millener in order to fit the experimental energies of the low-lying negativeparity levels of 16N and of the low-lying positive-parity levels of 180 and 190 . The predicted energies of the low-lying negative-parity levels of 17N then agree better with experiment, while those for 18N lead to suggested spin assignments for the observed levels.

scholarly journals Study of nuclei around Z = 28 by large-scale shell model calculations

2013 ◽  
Vol 445 ◽  
pp. 012028 ◽  
Author(s):  
Y Tsunoda ◽  
T Otsuka ◽  
N Shimizu ◽  
M Honma ◽  
Y Utsuno
Keyword(s):  
Shell Model ◽  
Large Scale ◽  
Model Calculations
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