The microscopic origin of deformation for heavy nuclei is discussed. Evidence is presented that the systematic features of nuclear deformation are determined primarily by filling of the normal-parity shell model orbitals of the valence shells, and that the abnormal-parity orbitals play crucial but ...
An attempt is made to match the distributions of alpha particles on the surface of doubly even nuclei, calculated from observed branching ratios with the distributions predicted by the shell-model assignments for the outermost nucleons (overlap model). The distributions calculated from the assignments...
Strong nuclear force Weak nuclear force Nuclear shell model Learning Goals By the end of this chapter, you should be able to understand: that the number of neutrons in the nucleus can cause a small shift in the spectrum, make an isotope unstable. that unstable atoms undergo radioactive decay ...
Nuclear shell model in terms of pseudo spin-orbit doublets and pseudo SU(3) coupling schemes 来自 osti.gov 喜欢 0 阅读量: 22 作者: KT Hecht 摘要: Spectra for a system of identical nucleons filling levels of a pseudo spin-orbit doublet, l/j, (l + 2)/j + 1 are examined. Formalism...
if the nucleus is made up only of filled proton and neutron shells, its spin will also be equal to zero. Whenever the number of protons or neutrons reaches a magic number that corresponds to the filling of the next shell, there is a possibility of a stepwise change in certain quantities ...
Several codes for the conventional shell-model (configuration-interaction) calculation are available, of which we used KSHELL33 in the present work. Reasonable inquiries about the MCSM code will be responded to by the corresponding author. References Indelicato, P. & Karpov, A. Sizing up atoms....
4a,b). The negative character of the phage nuclear shell probably reduces interactions with the enclosed DNA, thereby keeping the genetic material accessible for transcription, replication and capsid packaging. Fig. 4: Electrostatics and pores of the chimallin shell. a, Surface model of the 3 ...
A and B atoms interact through pair potentials, which are limited here to the first neighbor shell. A repulsive interaction between the different kinds of atoms was selected so that the equilibrium phase diagram exhibits a miscibility gap. One vacancy is introduced into the crystal, and it ...
Hydrogen above has a single electron in the first shell. On the other hand, helium has a full first shell with two electrons. Its configuration is: He=1s2He=1s2 It goes on like this, following the progression of the orbitals dictated by the following scheme:Visual representation of the oc...
& Sah, P. Intracellular calcium store filling by an L-type calcium current in the basolateral amygdala at subthreshold membrane potentials. J. Physiol. 562, 439–453 (2005). CAS PubMed Google Scholar Hong, M. & Ross, W. N. Priming of intracellular calcium stores in rat CA1 pyramidal ...