Core-polarization effects on stretched particle-hole excitations in closed shell nuclei

1987 ◽  
Vol 36 (4) ◽  
pp. 1657-1660 ◽  
Author(s):  
Atsushi Yokoyama ◽  
Hisashi Horie
Atoms ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 48
Author(s):  
M. Raineri ◽  
M. Gallardo ◽  
J. Reyna Almandos ◽  
A. G. Trigueiros ◽  
C. J. B. Pagan

A capillary pulsed-discharge and a theta-pinch were used to record Kr spectra in the region of 330–4800 Å. A set of 168 transitions of these spectra were classified for the first time. We extended the analysis to twenty-five new energy levels belonging to 3s23p24d, 3s23p25d even configurations. We calculated weighted transition probabilities (gA) for all of the experimentally observed lines and lifetimes for new energy levels using a relativistic Hartree–Fock method, including core-polarization effects.


1983 ◽  
Vol 28 (4) ◽  
pp. 1791-1797 ◽  
Author(s):  
M. Waroquier ◽  
J. Bloch ◽  
G. Wenes ◽  
K. Heyde

1988 ◽  
Vol 37 (10) ◽  
pp. 4034-4036 ◽  
Author(s):  
F. A. Parpia ◽  
W. F. Perger ◽  
B. P. Das

2020 ◽  
Vol 15 ◽  
pp. 57
Author(s):  
G. S. Anagnostatos

The significant features of exchange symmetry are displayed by simple systems such as two identical, spinless fermions in a one-dimensional well with infinite walls. The conclusion is that the maxima of probability of the antisymmetrized wave function of these two fermions lie at the same positions as if a repulsive force (of unknown nature) was applied between these two fermions. This conclusion is combined with the solution of a mathematical problem dealing with the equilibrium of identical repulsive particles (of one or two kinds) on one or more spheres like neutrons and protons on nuclear shells. Such particles are at equilibrium only for specific numbers of particles and, in addition, if these particles lie on the vertices of regular polyhedra or their derivative polyhedra. Finally, this result leads to a pictorial representation of the structure of all closed shell nuclei. This representation could be used as a laboratory for determining nuclear properties and corresponding wave functions.


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