Affordable Access

deepdyve-link
Publisher Website

Effect of particle-phonon coupling on pairing correlations in nuclei

Authors
  • Terasaki, J.
  • Barranco, F.
  • Bortignon, P. -F.
  • Broglia, R. A.
  • Vigezzi, E.
Type
Preprint
Publication Date
Sep 19, 2001
Submission Date
Sep 19, 2001
Identifiers
DOI: 10.1143/PTP.108.495
Source
arXiv
License
Unknown
External links

Abstract

The influence of particle-phonon coupling on pairing correlations in nuclei is studied by solving the Dyson equation including the anomalous (pairing) Green function. We develop the formalism for solving the equation with the minimum of approximations. The solution of the Dyson equation is compared with the diagonalization of particle-phonon coupled Hamiltonian in a small space. This comparison reveals that the effect of many-phonon states is incorporated in the Dyson equation. We calculate the pairing gap of the neutron in 120Sn. We compare analytically the present method with a simpler treatment based on Bloch-Horowitz perturbation theory.

Report this publication

Statistics

Seen <100 times