학술논문

Isovector density and isospin impurity in 40Ca
Document Type
article
Source
Physics Letters B, Vol 829, Iss , Pp 137072- (2022)
Subject
IS and IV densities
Isospin impurity
Hartree-Fock model
Particle-vibration coupling model
Charge symmetry breaking interaction
Charge independence breaking interaction
Physics
QC1-999
Language
English
ISSN
0370-2693
Abstract
We study isoscalar (IS) and isovector (IV) densities in Ca40 in comparison with theoretical densities calculated by Skyrme Hatree-Fock (HF) models. The charge symmetry breaking and the charge independence breaking forces are introduced to study the effect on the IV density. The effect of isospin mixing in the ground-state density is examined by using the particle-vibration coupling model taking into account the collective IV giant monopole excitation. We show a clear correlations in the IV density and isospin impurity of Ca40 within the HF and the particle-vibration coupling model. We extract for the first time the experimental information of isospin impurity from the magnitude of IV density.