Measurement of the B(E2, $0^+_1 \rightarrow 2^+_1$) in the N = 16 nucleus $^{26}$Ne
Résumé
Differential cross section of the inelastic scattering of a 54 MeV/u 26Ne beam on a lead target has been measured by detecting the de-excitation $\gamma$-rays. Analysis of the first 2+ state angular distribution of the inelastically scattered nuclei shows that the process cannot be considered as a pure Coulomb excitation, and nuclear contribution must be taken into account. The charge deformation deduced, ¯C 2 = 0.392 ± 0.024, corresponds to a B(E2) = 141 ± 18 e2fm4 in agreement with a N = 16 sub-shell closure.
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