Resonances of 6He via the 8He(p,t)6He reaction

V. Lapoux (1) , X. Mougeot (1) , N. Keeley , A. Drouart (1) , N. Alamanos (1) , F. Auger (1) , B. Avez (1) , D. Beaumel (2) , Y. Blumenfeld (2) , R. Dayras (1) , C. Force (3) , L. Gaudefroy (4) , A. Gillibert (1) , J. Guillot (2) , H. Iwasaki (2) , T. Al Kalanee (3) , K. W. Kemper , T. Mermizedakis , W. Mittig (3) , L. Nalpas (1) , E. Pollacco (1) , A. Pakou , T. Roger (3) , P. Roussel-Chomaz (3) , K. Rusek , J.-A. Scarpaci (2) , C. Simenel (1) , D. Suzuki (2) , R. Wolski

1 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers
2 IPNO - Institut de Physique Nucléaire d'Orsay
3 GANIL - Grand Accélérateur National d'Ions Lourds
4 DPTA - Département de Physique Théorique et Appliquée

We investigated the low-lying spectroscopy of 6He via the 2-neutron transfer reaction induced by the 8He SPIRAL beam at 15.4 A.MeV on a proton-rich target. The light charged recoil particles produced by the direct reactions were measured using theMUST2 Si-strip telescope array. Two new resonances were observed above the known 2+ state in 6He, and the angular momentum transfer was deduced through the analysis of the angular distributions. Results are discussed in comparison with the recent calculations of various nuclear structure theories which include the coupling to the continuum technique and to the ones which give an understanding of the cluster correlations in the light weakly-bound nuclei.

Domaines: Physique Nucléaire Expérimentale [nucl-ex]

V. Lapoux, X. Mougeot, N. Keeley, A. Drouart, N. Alamanos, et al.. Resonances of 6He via the 8He(p,t)6He reaction. 12th International Conference on Nuclear Reaction Mechanisms, Jun 2009, Varenna, Italy. pp.345-352. ⟨in2p3-00448824⟩