3$\alpha$-cluster structure and monopole transition in ${}^{12}$C and ${}^{14}$C

Yuta Yoshida, Yoshiko Kanada-En'yo

3$\alpha$-cluster structures and monopole transitions of $0^{+}$ states in ${}^{12}$C and ${}^{14}$C were investigated with $3\alpha$- and ${}^{10}$Be+$\alpha$-cluster models. A gas-like $3\alpha$ state and a…