Calculation of the transition from pairing vibrational to pairing rotational regimes between magic nuclei Sn100 and Sn132 via two-nucleon transfer reactions

Absolute values of two-particle transfer cross sections along the Sn-isotopic chain are calculated. They agree with measurements within errors and without free parameters. Within this scenario, the predictions concerning the absolute value of the two-particle transfer cross sections associated with the excitation of the pairing vibrational spectrum expected around the recently discovered closed shell nucleus Sn8250132 and the very exotic nucleus Sn5050100 can be considered quantitative, opening new perspectives in the study of pairing in nuclei.