Interference Between Direct Nuclear Reactions and Coulomb Excitation with Alpha Particles onSm154,Er166, andW182

Abstract
Striking destructive interference effects have been observed in the He4 excitation of the 2+ and 4+ ground-state band rotational states in deformed even-A Sm154, Er166, and W182. The E2 and E4 transition moments and charge deformation parameters, β20c and β40c, are given.