Structure and decay pattern of linear-chain state in 14C

Abstract

The linear-chain states of ${}^{14}$C are theoretically investigated by using the antisymmetrized molecular dynamics. The calculated excitation energies and the $\alpha$ decay widths of the linear-chain states were compared with the observed data reported by the recent experiments. The properties of the positive-parity linear-chain states reasonably agree with the observation, that convinces us of the linear-chain formation in the positive-parity states. On the other hand, in the negative-parity states, it is found that the linear-chain configuration is fragmented into many states and do not form a single rotational band. As a further evidence of the linear-chain formation, we focus on the $\alpha$ decay pattern. It is shown that the linear-chain states decay to the excited states of daughter nucleus ${}^{10}\mathrm{Be}$ as well as to the ground state, while other cluster states dominantly decay into the ground state. Hence, we regard that this characteristic decay pattern is a strong signature of the linear-chain formation.

References in corpus (4)

• Rod-shaped Nuclei at Extreme Spin and Isospin
• Cluster structures of excited states in ${}^{14}$C
• 3alpha clustering in the excited states of 16C
• Approximation of reduced width amplitude and application to cluster decay width

Cited by in corpus (18)

• Antisymmetrized molecular dynamics studies for exotic clustering phenomena in neutron-rich nuclei
• Positive-parity linear-chain molecular band in ${}^{16}$C
• Selective decay from a candidate of the $\sigma$-bond linear-chain state in ${}^{14}$C
• Nonlocalized Clustering and Evolution of Cluster Structure in Nuclei
• Three-body decay of linear-chain states in ${}^{14}$C
• Real-time evolution method and its application to 3$\alpha$ cluster system
• Effects of rotation and valence nucleons in molecular-like $\alpha$-chain nuclei
• Characteristic αand ^{6}He decays of the linear-chains in ^{16}C
• Cluster structures and monopole transitions of ${}^{14}$C
• Investigation of the near-threshold cluster resonance in ${}^{14}\mathrm{C}$
• 2$\alpha$+$t$ cluster structure in ${}^{11}$B
• Shape of 13C studied by the real-time evolution method
• A variety of clustering in ${}^{18}$O
• Monopole and dipole transitions of the cluster states of 18O
• On deformability of atoms---comparative study between atoms and atomic nuclei
• The lowest excited states of 14C and 14O nuclei within a five-cluster model
• Description of isospin mixing by a generator coordinate method
• 4$\alpha$ linear-chain state produced by ${}^9$Be+${}^9$Be collision