Isospin mixing induced by the Coulomb interaction has been studied in the compound nucleus ~(80)Zr at T~2 MeV produced in the fusion-evaporation reaction ~(40)Ca+~(40)Ca at E~(beam) = 136 MeV. The isospin impurity was measured using the first step of the Giant Dipole Resonance γ decay. The preliminary value of the Coulomb spreading width has been extracted via statistical model analysis of the measured γ spectrum.
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