Effect of isoscalar spin-triplet pairings on spin-isospin responses in $sd-$ shell nuclei
Nuclear Theory
2016-11-23 v2
Abstract
The spin magnetic dipole transitions and the neutron-proton spin-spin correlations in shell even-even nuclei with are investigated using shell model wave functions. The isoscalar spin-triplet pairing correlation provides a substantial quenching effect on the spin magnetic dipole transitions, especially the isovector (IV) ones. Consequently, an enhanced isoscalar spin-triplet pairing interaction influences the proton-neutron spin-spin correlation deduced from the difference between the isoscalar (IS) and the IV sum rule strengths. The effect of the ( resonance)-hole coupling is examined in the IV spin transition and the spin-spin correlations of the ground states.
Keywords
Cite
@article{arxiv.1607.05881,
title = {Effect of isoscalar spin-triplet pairings on spin-isospin responses in $sd-$ shell nuclei},
author = {H. Sagawa and T. Suzuki and M. Sasano},
journal= {arXiv preprint arXiv:1607.05881},
year = {2016}
}