Two-nucleon excitation from $p$ to $sd$ shell in ${}^{12,14}$C

Cenxi Yuan, Min Zhang, Nianwu Lan +1

The effect of the two-nucleon excitation from $p$ to $sd$ shell is discussed in ${}^{12}$C and ${}^{14}$C in the frame work of shell model. The recently suggested shell-model Hamiltoni…