A cluster-transfer experiment 9Be(9Be,14C∗→α+10Be)α 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 14C and separating various reaction channels. A number of resonant states are reconstructed from the forward emitting 10Be + α fragments with respect to three sets of well discriminated final states in 10Be, most of which agree with the previous observations. A state at 22.5(1) MeV in 14C is found to decay predominantly into the states around 6 MeV in 10Be daughter nucleus, in line with the unique property of the predicted band head of the σ-bond linear-chain molecular states. A new state at 23.5(1) MeV is identified which decays strongly into the first excited state of 10Be.
@article{arxiv.1702.00617,
title = {Selective decay from a candidate of the $\sigma$-bond linear-chain state in $^{14}$C},
author = {J. Li and Y. L. Ye and Z. H. Li and C. J. Lin and Q. T. Li and Y. C. Ge and J. L. Lou and Z. Y. Tian and W. Jiang and Z. H. Yang and J. Feng and P. J. Li and J. Chen and Q. Liu and H. L. Zang and B. Yang and Y. Zhang and Z. Q. Chen and Y. Liu and X. H. Sun and J. Ma and H. M. Jia and X. X. Xu and L. Yang and N. R. Ma and L. J. Sun},
journal= {arXiv preprint arXiv:1702.00617},
year = {2017}
}