Two-neutron transfer in Sn isotopes beyond the N = 82 shell closure

TL;DR

This paper presents microscopic DWBA calculations of two-neutron transfer reactions in Sn isotopes beyond N=82, predicting cross sections for future radioactive beam experiments using shell model states and realistic interactions.

Contribution

The study introduces detailed DWBA calculations for Sn isotopes using a shell model with a realistic effective interaction, aiding future experimental analysis.

Findings

Predicted differential cross sections for 136Sn(p,t)134Sn and 134Sn(t,p)136Sn reactions.

Identification of key features of cross sections for low-lying yrast states.

Validation of the shell model and effective interaction in describing transfer reactions.

Abstract

We have performed microscopic distorted-wave Born approximation (DWBA) calculations of differential cross sections for the two reactions 136Sn(p,t)134Sn and 134Sn(t,p)136Sn, which are within reach of near-future experiments with radioactive ion beams. We have described the initial and final nuclear states in terms of the shell model, employing a realistic low-momentum two-body effective interaction derived from the CD-Bonn nucleon-nucleon potential that has already proved quite successful in describing the available low-energy energy spectrum of 134Sn. We discuss the main features of the predicted cross sections for the population of the low-lying yrast states in the two nuclei considered.