In-beam gamma-ray spectroscopy at the RIBF

Abstract

In-beam γ -ray spectroscopy is a powerful tool to investigate new excited states and the properties of very exotic nuclei. At the Radioactive Isotope Beam Factory (RIBF), it combines the in-flight BigRIPS fragment separator with an efficient γ -ray spectrometer. Exotic beams produced by BigRIPS are incident on a secondary target at 100 to 250 MeV/nucleon for Coulomb excitation or secondary fragmention and knockout experiments. Secondary reaction products are identified by the ZeroDegree spectrometer. Details of the method are described alongside the performance of the γ -ray spectrometers, first results, and prospects for future experiments and setups.