Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2007-06-22
Phys.Rev.C76:044319,2007
Physics
Nuclear Physics
Nuclear Theory
7 figures
Scientific paper
10.1103/PhysRevC.76.044319
We analyze the evolution with increasing isospin asymmetry of the proton single-particle states 2s1/2 and 1d3/2 in Ca isotopes, using non-relativistic and relativistic mean field approaches. Both models give similar trends and it is shown that this evolution is sensitive to the neutron shell structure, the two states becoming more or less close depending on the neutron orbitals which are filled. In the regions where the states get closer some parametrizations predict an inversion between them. This inversion occurs near $^{48}$Ca as well as very far from stability where the two states systematically cross each other if the drip line predicted in the model is located far enough. We study in detail the modification of the two single-particle energies by using the equivalent potential in the Schroedinger-like Skyrme-Hartree-Fock equations. The role played by central, kinetic and spin-orbit contributions is discussed. We finally show that the effect of a tensor component in the effective interaction considerably favors the inversion of the two proton states in $^{48}$Ca.
Giai Nguyen Van
Grasso Marcella
Khan Elias
Ma Zhong-Yu
Margueron Jean
No associations
LandOfFree
Evolution of the proton sd states in neutron-rich Ca isotopes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Evolution of the proton sd states in neutron-rich Ca isotopes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evolution of the proton sd states in neutron-rich Ca isotopes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-187689