Inverse-Kinematics Proton Scattering From 51Ca
Physics & Astronomy
We have studied 51Ca using inverse kinematics proton scattering. The experiment was run at the National Superconducting Cyclotron Laboratory (NSCL) using the GRETINA gamma-ray tracking array and the Ursinus College/NSCL liquid hydrogen target. We used the UCGretina code to extract gamma-ray intensities from measured gamma-ray spectra. The reaction populated five excited states of 51Ca. We observed a new gamma ray with an energy of 3950 keV. The measured probabilities for exciting these states tell us about the interplay between collective and single-particle behavior. Proton scattering tends to excite collective states, i.e. states in which many protons and neutrons participate. This suggests that the new gamma ray at 3950 keV de-excited a collective state.
Gregory, Sean D., "Inverse-Kinematics Proton Scattering From 51Ca" (2015). Physics and Astronomy Summer Fellows. 6.