Nuclear Shape at High Spin and Excitation Energy

Abstract
High-energy gamma rays from the deexcitation of giant dipole resonance modes have been measured for the decay of Sn*108 and Er*166. The structure of the observed resonances can be correlated with the shapes of these nuclei at high excitation energy (E*60 MeV). For the deformed system Er*166 a shape change with increasing temperature is suggested.
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