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The First Unbound States in the \(A=9\) Mirror Nuclei \(^9\)B and \(^9\)Be

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Recent Progress in Few-Body Physics (FB22 2018)

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Abstract

The structures of the first \(1/2^+\) unbound states of \(A=9\) mirror nuclei are studied in the complex scaled \(\alpha +\alpha +N\) three-body model. The results indicate that the \(1/2^+\) state of \(^9\)Be is a virtual state of the s-wave neutron around the \(^8\)Be (\(\alpha -\alpha \)) cluster. But the corresponding analog \(^9\)B\((1/2^+)\) state is predicted as a resonant state due to the Coulomb barrier.

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Correspondence to Myagmarjav Odsuren .

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Odsuren, M., Kikuchi, Y., Myo, T., Katō, K. (2020). The First Unbound States in the \(A=9\) Mirror Nuclei \(^9\)B and \(^9\)Be. In: Orr, N., Ploszajczak, M., Marqués, F., Carbonell, J. (eds) Recent Progress in Few-Body Physics. FB22 2018. Springer Proceedings in Physics, vol 238. Springer, Cham. https://doi.org/10.1007/978-3-030-32357-8_16

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