Coulex-multipolarimetry with relativistic heavy-ion beams

Abstract

We present a method suitable to measure E2/M1 multipole mixing ratios of nuclear ground-state transitions by comparison of relativistic Coulomb-excitation cross-sections at different ion velocities. The observation of the Coulomb-excitation at different ion velocities can be performed with high-resolution γ-ray detectors in one single experiment by using two targets mounted at a few centimeters distance along the beam axis. Excitation in either of the targets is distinguished by different observed Doppler-shifts.