Abstract
Coulomb excitation of the 0.478 MeV J π = 1 2 − state of 7Li has been studied by a partiele-γ coincidence technique. From the dependence of the excitation probabilities on bombarding energy and scattering angle a sizeable interference contribution from E1 excitation of continuum states has been determined. General expressions for the size of the E1 polarization effect in Coulomb excitation are given and the observed magnitudes in 6,7Li are compared with schematic model calculations.
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