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Measurement of the B(E2, $0^+_1 \rightarrow 2^+_1$) in the N = 16 nucleus $^{26}$Ne

Abstract : 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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Submitted on : Tuesday, April 10, 2007 - 3:43:34 PM
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J. Gibelin, D. Beaumel, T. Motobayashi, N. Aoi, H. Baba, et al.. Measurement of the B(E2, $0^+_1 \rightarrow 2^+_1$) in the N = 16 nucleus $^{26}$Ne. Physical Review C, American Physical Society, 2007, 75, pp.057306. ⟨10.1103/PhysRevC.75.057306⟩. ⟨in2p3-00140867⟩