TY - JOUR T1 - New excited states in the halo nucleus $^6$He JF - Phys. Lett. B Y1 - 2012 A1 - X. Mougeot A1 - V. Lapoux A1 - W. Mittig A1 - N. Alamanos A1 - F. Auger A1 - B. Avez A1 - D. Beaumel A1 - Y. Blumenfeld A1 - R. Dayras A1 - A. Drouart A1 - C. Force A1 - Gaudefroy, L. A1 - A. Gillibert A1 - J. Guillot A1 - H. Iwasaki A1 - T. Al Kalanee A1 - N. Keeley A1 - L. Nalpas A1 - E.C. Pollacco A1 - T. Roger A1 - P. Roussel-Chomaz A1 - D. Suzuki A1 - K.W. Kemper A1 - Mertzimekis, T. J. A1 - A. Pakou A1 - K. Rusek A1 - J.-A. Scarpaci A1 - C. Simenel A1 - I. Strojek A1 - R. Wolski KW - He 8 ( p KW - t ) AB - The low-lying spectroscopy of 6He was investigated via the 2-neutron transfer reaction p ( He 8 , t ) with the 8He beam delivered by the \{SPIRAL\} facility at 15.4   A MeV . 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 ± 0.3   MeV (width Γ = 1.6 ± 0.4   MeV ) and at 5.3 ± 0.3   MeV with Γ = 2 ± 1   MeV . Through the analysis of the angular distributions, they correspond to a 2 + state and to an L = 1 state, respectively. These new states, challenging the nuclear theories, could be used as benchmarks for checking the microscopic inputs of the newly improved structure models, and should trigger development of models including the treatments of both core excitation and continuum coupling effects. VL - 718 ER -