Study of the transition from pairing vibrational to pairing rotational regimes between magic numbers N=50 and N=82, with two-nucleon transfer

TL;DR

This paper models two-nucleon transfer reactions across Sn isotopes to understand the transition from pairing vibrational to pairing rotational regimes, achieving quantitative agreement with experimental data without free parameters.

Contribution

It provides a comprehensive theoretical analysis of two-nucleon transfer cross sections across a range of Sn isotopes, accurately capturing nuclear correlations and reaction mechanisms.

Findings

Quantitative agreement with experimental (p, t) data.

Successful modeling of nuclear correlations and transfer mechanisms.

Clear evidence of the transition between pairing vibrational and rotational regimes.

Abstract

Absolute values of two-particle transfer cross sections along the Sn-isotopic chain from closed shell to closed shell (100Sn,132Sn) are calculated taking properly into account nuclear correlations, as well as the successive, simultaneous and non-orthogonality contributions to the differential cross sections. The results are compared with systematic, homogeneous bombarding conditions (p, t) data. The observed agreement, almost within statistical errors and without free parameters, testify to the fact that theory is able to be quantitative in its predictions.