Phys.Rev. C 103, L031302 (2021)

J.Chen, S.M.Wang, H.T.Fortune, J.L.Lou, Y.L.Ye, Z.H.Li, N.Michel, J.G.Li, C.X.Yuan, Y.C.Ge, Q.T.Li, H.Hua, D.X.Jiang, X.F.Yang, D.Y.Pang, F.R.Xu, W.Zuo, J.C.Pei, J.Li, W.Jiang, Y.L.Sun, H.L.Zang, N.Aoi, H.J.Ong, E.Ideguchi, Y.Ayyad, K.Hatanaka, D.T.Tran, D.Bazin, J.Lee, Y.N.Zhang, J.Wu, H.N.Liu, C.Wen, T.Yamamoto, M.Tanaka, T.Suzuki

Observation of the near-threshold intruder 0^- resonance in ¹²Be

NUCLEAR REACTIONS ²H(¹¹Be, p)¹²Be, E=26.9 MeV/nucleon; measured E(p), I(p), σ(θ) using two parallel-plate avalanche counters (PPACs), and a set of annular double-sided silicon detectors (ADSSDs) at the RCNP, Osaka University. ¹²Be; deduced missing-mass spectra of ¹²Be unbound states, levels, J, π, a 0- resonance just above S(n), decay width. DWBA analysis. Comparison with Gamow coupled-channel and Gamow shell-model calculations.

doi: 10.1103/PhysRevC.103.L031302