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Breakup reaction studies of [Formula Presented] and [Formula Presented] using a [Formula Presented] beam

par Ahmed, S.;Lecouey, J.C. J.C.;Marqués, Francisco Miguel;Materna, Thomas ;Ninane, A.;Normand, G.;Orr, Nigel;Pain, Steven;Soić, Neven;Timis, C.N.;Unshakova, A.;Freer, Martin;Ziman, V.A.;Angélique, Jean Claude;Ashwood, N.I.;Bouchat, Virginie;Catford, Wilton;Clarke, Nicholas;Curtis, N.;Hanappe, Francis
Référence Physical review. C. Nuclear physics, 69, 2, page (9)
Publication Publié, 2004

Article révisé par les pairs

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Résumé :

The structure of [Formula Presented] has been investigated by inelastic scattering to states above the breakup threshold using the reaction [Formula Presented] at [Formula Presented]. Excited states in [Formula Presented] were observed at [Formula Presented] and [Formula Presented]. No evidence was observed for the population of the [Formula Presented] member of the ground-state band of [Formula Presented] indicating the shell-model-like structure of the ground state. In addition, the decay of [Formula Presented], [Formula Presented], and [Formula Presented], populated in the two-neutron, proton pickup, breakup and [Formula Presented] pickup reactions, was reconstructed through the detection of coincident [Formula Presented], [Formula Presented], and [Formula Presented] particles. Cross sections for the formation of the [Formula Presented], [Formula Presented], [Formula Presented], and [Formula Presented] were also deduced. Contrary to expectations, the two-neutron removal results in the production of [Formula Presented] predominantly [Formula Presented] in the first excited [Formula Presented] state. This suggests that dynamical excitations play an important role in the neutron removal process. © 2004 The American Physical Society.