Sub-barrier backward quasielastic scattering: A probe of the hexadecapole deformationH.Q. Zhang, C.J. Lin, H.M. Jia, L. Yang, X.X. Xu, F. Yang, Z.D. Wu, Z.H. Liu, N.R. Ma, L.J. Sun and D.X. WangEPJ Web of Conferences, 117 (2016) 04010DOI: https://doi.org/10.1051/epjconf/201611704010