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New excited states in the halo nucleus 6He

Mougeot, X.; Lapoux, V; Mittig, W.; Alamanos, N.; Auger, G.; Avez, B.; Beaumel, D.; Blumenfeld, Y; Dayras, R.; Drouart, A.; Simenel, Cedric; Auger, F.

Description

The low-lying spectroscopy of 6He was investigated via the 2-neutron transfer reaction p(He8,t) with the 8He beam delivered by the SPIRAL facility at 15.4AMeV. The light charged particles produced by the direct reactions were measured using the MUST2 Si-strip telescope array. Above the known 2 + state, two new resonances were observed: at E *=2.6±0.3MeV (width Γ=1.6±0.4MeV) and at 5.3±0.3MeV with Γ=2±1MeV. Through the analysis of the angular distributions, they correspond to a 2 + state and to...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
URI: http://hdl.handle.net/1885/78353
Source: Physics Letters B
DOI: 10.1016/j.physletb.2012.10.054

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