Extremely large oblate deformation of the first excited state in ${}^{12}$C: a new challenge to modern nuclear theory

C. Ngwetsheni, J. N. Orce, P. Navrátil +14

A Coulomb-excitation study of the high-lying first excited state at 4.439 MeV in the nucleus ${}^{12}$C has been carried out using the ${}^{208}$Pb(${}^{12}$C,${}^{12}$C${}^{\ast }$)${}^{208}$Pb${}^{\ast }$…