Isospin Symmetry and Core Polarization in Z=8 and N=8 Single Closed Shell Nuclei

点击翻译按钮获取中文摘要

This project involves Earlham College undergraduates in the study ofdifferences in proton and neutron behavior in exotic nuclei. Protonand neutron contributions to excited states can be disentangled bycomparing experimental measurements that have differentsensitivities to protons and neutrons. The advent of radioactivebeam technology has enabled such investigations of nuclei away fromstability via inverse kinematics proton scattering, electromagneticlifetime measurements, and Coulomb excitation. The focus of thisproject is on collective excitations in N=8 and Z=8 single closedshell nuclei. Three measurements are planned, a gamma-ray lifetimemeasurement of the first excited state of Ne-18 at Florida StateUniversity (FSU) and inverse kinematics proton scatteringmeasurements of the first excited states of Neon-18 and Oxygen-22 atthe National Superconducting Cyclotron Laboratory (NSCL). Theproject will span three years and involve one to two students for8-10 weeks per summer. Participants will to travel to the NSCL orFSU to perform experiments and will analyze the data at Earlham.