Neutron Binding Energies from (d,p) Reactions and Nuclear Shell Structure

1951 ◽  
Vol 81 (3) ◽  
pp. 353-364 ◽  
Author(s):  
J. A. Harvey
Keyword(s):  
Shell Structure ◽  
Binding Energies ◽  
Nuclear Shell

Nuclear Shell Structure in Semi-Realistic Mean-Field Approach

2011 ◽  
Author(s):  
H. Nakada ◽  
Paraskevi Demetriou ◽  
Rauno Julin ◽  
Sotirios Harissopulos
Keyword(s):  
Shell Structure ◽  
Mean Field ◽  
Field Approach ◽  
Nuclear Shell

AN ATOMIC MASS STUDY OF NUCLEAR SHELL STRUCTURE IN THE REGION AND

1953 ◽  
Vol 31 (6) ◽  
pp. 942-953 ◽  
Author(s):  
Benjamin G. Hogg ◽  
Henry E. Duckworth
Keyword(s):  
Shell Structure ◽  
Atomic Mass ◽  
Mass Effects ◽  
Mass Data ◽  
Nuclear Shell

New mass spectrographic masses are reported for some of the isotopes of gallium, germanium, arsenic, and selenium. These results are combined with previously reported atomic mass data in order to study atomic mass trends in the region [Formula: see text] and [Formula: see text]. The only pronounced mass effects which occur in this region are those associated with 28 and 50 nucleons. We have found no extra stability which can be associated with the filling of the f5/2, p3/2 and p1/2 subshells. A list of mass values used in this study is included.

LEVEL DENSITIES IN LIGHTER NUCLEI

1965 ◽  
Vol 43 (7) ◽  
pp. 1248-1258 ◽  
Author(s):  
A. Gilbert ◽  
F. S. Chen ◽  
A. G. W. Cameron
Keyword(s):  
Excitation Energy ◽  
Ground State ◽  
Shell Structure ◽  
Mass Number ◽  
State Energy ◽  
Binding Energies ◽  
Light Nuclei ◽  
Cumulative Number ◽  
Additional Consideration ◽  
Level Densities

There has been discussion in the literature as to whether the cumulative number of levels in light nuclei varies more nearly as exp(const. [Formula: see text]) or exp(const. E), where E is the excitation energy. The question is examined in this paper. It is found that if one constructs "step diagrams" by plotting the cumulative number versus the energy, both formulas represent the data almost equally well. However, additional consideration of levels counted above neutron and proton binding energies shows that exp(const. [Formula: see text]) fails badly to represent the data, whereas exp(const. E) continues to give good fits. In either case E may be measured above an arbitrary ground-state energy E0. If the satisfactory formula is written in the form exp(E–E0)/T, then it is found that the dependence of the slope on mass number may be expressed in approximately the form T−1 = 0.0165A MeV−1, but there are significant deviations from this relation apparently related to shell structure. The intercepts E0 are quite variable but are roughly clustered according to the oddness or evenness of the neutron and proton numbers of the nucleus.

scholarly journals Investigating nuclear shell structure in the vicinity ofNi78: Low-lying excited states in the neutron-rich isotopesZn80,82

2016 ◽  
Vol 93 (2) ◽  
Author(s):  
Y. Shiga ◽  
K. Yoneda ◽  
D. Steppenbeck ◽  
N. Aoi ◽  
P. Doornenbal ◽  
...  
Keyword(s):  
Excited States ◽  
Shell Structure ◽  
Nuclear Shell
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