Speaker
Description
Shell evolution and collectivity in the tin isotopes has been examined rigorously through Coulomb excitation, where enhancements in the experimental B(E2) values in the light Sn nuclei have not yet been explained to satisfaction. To illuminate their structure and investigate nucleon-nucleon interactions, spectroscopic information on single-particle dominated states in the odd-A Sn isotopes should be measured and compared with recent shell model predictions. Spin-parity assignments and spectroscopic factors of states in light unstable Sn nuclei are limited, with no literature from (d,p) reactions.
A (d,p) transfer experiment on $^{110}$Sn was carried out at HIE-ISOLDE, CERN. The radioactive $^{110}$Sn beam was produced from proton spallation reactions on a LaCx target, and was post-accelerated to 8 MeV per nucleon. The (d,p) reaction in inverse kinematics was induced on a thin CD2 target. The outgoing protons were detected by the ISOLDE Solenoidal Spectrometer (ISS), where the energy resolution of outgoing protons was improved through the use of an external solenoidal magnetic field at 2.5 T. The beam intensity was monitored with an elastic luminosity (ELUM) detector for scattered deuterons in the target.
Multiple excited states in $^{111}$Sn were observed, and preliminary values of the (d,p) differential cross sections will be presented.
