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Published in

arXiv, 2017

DOI: 10.48550/arxiv.1702.00617

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

This paper is available in a repository.
This paper is available in a repository.

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Abstract

A cluster-transfer experiment $^9$Be($^9$Be,$^{14}$C$^*→α$+$^{10}$Be)$α$ 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 $^{14}$C and separating various reaction channels. A number of resonant states are reconstructed from the forward emitting $^{10}$Be + $α$ 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 $σ$-bond linear-chain molecular states. A new state at 23.5(1) MeV is identified which decays strongly into the first excited state of $^{10}$Be. ; Comment: 6 pages, 4 figures