Phys.Rev. C 103, L061302 (2021)

W.H.Ma, D.Patel, Y.Y.Yang, J.S.Wang, Y.Kanada-En'yo, R.F.Chen, J.Lubian, Y.L.Ye, Z.H.Yang, Z.Z.Ren, S.Mukherjee, J.B.Ma, S.L.Jin, P.Ma, J.X.Li, Y.S.Song, Q.Hu, Z.Bai, M.R.Huang, X.Q.Liu, Y.J.Zhou, J.Chen, Z.H.Gao, F.F.Duan, S.Y.Jin, S.W.Xu, G.M.Yu, G.Z.Shi, Q.Wang, T.F.Wang, X.Y.Ju, Z.G.Hu, Y.H.Zhang, X.H.Zhou, H.S.Xu, G.Q.Xiao, W.L.Zhan

Observation of ⁶He + t cluster states in ⁹Li

NUCLEAR REACTIONS ²⁰⁸Pb(⁹Li, X), E=32.7 MeV/nucleon, [secondary ⁹Li beam from ⁹Be(¹²C, X), E=53.7 MeV/nucleon, followed by separation and purification of fragments using RIBLL1 at HIRFL-Lanzhou facility]; measured reaction products and outgoing charged particles, angular distributions of charged particles using Si telescope and CsI(Tl) scintillator array. ⁹Li; deduced resonant states, relative energy spectrum of ⁶He+t cluster states from the decay of ⁹Li resonances, differential breakup cross-section, isoscalar monopole transition matrix element M(IS0) and monopole strength B(IS0), energy-weighted sum rule (EWSR) for the transferred angular momentum. DWBA and CDCC analysis of angular distributions, and GCM calculations for the cluster states in ⁹Li. Relevance to differences between the triton and α clusters, and impact of these differences on the formation of nuclei containing triton clusters.

doi: 10.1103/PhysRevC.103.L061302