Selective decay from a candidate of the $\sigma$-bond linear-chain state in ${}^{14}$C

Abstract

A cluster-transfer experiment ${}^9$Be(${}^9$Be,${}^{14}$C${}^{\ast }\to \alpha$+${}^{10}$Be)$\alpha$ was carried out using an incident beam energy of 45 MeV. This reaction channel has a large $Q$-value that favors populating the high-lying states in ${}^{14}$C and separating various reaction channels. A number of resonant states are reconstructed from the forward emitting ${}^{10}$Be + $\alpha$ fragments with respect to three sets of well discriminated final states in ${}^{10}$Be, most of which agree with the previous observations. A state at 22.5(1) MeV in ${}^{14}$C is found to decay predominantly into the states around 6 MeV in ${}^{10}$Be daughter nucleus, in line with the unique property of the predicted band head of the $\sigma$-bond linear-chain molecular states. A new state at 23.5(1) MeV is identified which decays strongly into the first excited state of ${}^{10}$Be.

arXiv comment6 pages, 4 figures

References in corpus (6)

• Molecular-orbital structure in neutron-rich C isotopes
• Investigation of 10Be and its cluster dynamics from nonlocalized clustering concept
• Structure and decay pattern of linear-chain state in 14C
• 4He decay of excited states in 14C
• Be-$\alpha$ correlations in the linear-chain structure of C isotopes
• Cluster Decay of the High-lying excited states in ${}^{14}$C

Cited by in corpus (15)

• Study of ground state properties of carbon isotopes with deformed relativistic Hartree-Bogoliubov theory in continuum
• Stability of the linear chain structure for ${}^{12}$C in covariant density functional theory on a 3D lattice
• Positive-parity linear-chain molecular band in ${}^{16}$C
• 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
• Determination of the cluster-decay branching ratio from a near-threshold molecular state in ${}^{10}$Be
• Investigation of the near-threshold cluster resonance in ${}^{14}\mathrm{C}$
• Shape of 13C studied by the real-time evolution method
• A variety of clustering in ${}^{18}$O
• Spin determination from the in-plane angular correlation analysis for various coordinate systems
• Monopole and dipole transitions of the cluster states of 18O
• $\alpha$-cluster decay from ${}^{24}$Mg resonances produced in ${}^{12}$C(${}^{16}$O,${}^{24}$Mg)$\alpha$ reaction
• 4$\alpha$ linear-chain state produced by ${}^9$Be+${}^9$Be collision