Phonon-particle coupling effects in odd-even double mass differences of magic nuclei
Abstract
A method is developed to consider the particle-phonon coupling (PC) effects in the problem of finding odd-even double mass differences (DMD) of magic nuclei within the approach starting from the free -potential. Three PC effects are taken into account, the phonon induced interaction, the renormalization of the "ends" due to the -factors and the change of the single-particle energies. We use the perturbation theory in , where is the vertex of the -phonon creation. PC corrections to single-particle energies are found self-consistently with an approximate account for the so-called tadpole diagram. Results for double-magic Sn and Pb nuclei show that the PC corrections make agreement with the experimental data better.
Keywords
Cite
@article{arxiv.1511.08034,
title = {Phonon-particle coupling effects in odd-even double mass differences of magic nuclei},
author = {E. E. Saperstein and M. Baldo and N. V. Gnezdilov and S. V. Tolokonnikov},
journal= {arXiv preprint arXiv:1511.08034},
year = {2016}
}
Comments
LaTex, 6 pages, 4 figures, submitted to Jetp. Lett. arXiv admin note: substantial text overlap with arXiv:1511.06579