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arXiv · 2102.11733

alpha clustering and neutron-skin thickness of carbon isotopes

Q. Zhao·Y. Suzuki·J. He·B. Zhou·M. Kimura
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Abstract

The interplay between the formation of neutron skin and alpha cluster at the dilute surface of neutron-rich nuclei is one of the interesting subjects in the study of neutron-rich nuclei and nuclear clustering. A theoretical model has predicted that the growth of neutron skin will prevent the alpha clustering at the nuclear surface. Quite recently, this theoretical perspective; the suppression of alpha clustering by the neutron-skin formation was first confirmed experimentally in Sn isotopes as the reduction of the (p, p alpha) reaction cross-section. Motivated by the novel discovery, in this work, we have investigated the relationship between the neutron-skin thickness and alpha clustering in C isotopes. Based on the analysis by the antisymmetrized molecular dynamics, we show that the alpha spectroscopic factor at nuclear exterior decreases in neutron-rich C isotopes, and the clustering suppression looks correlated with the growth of the neutron-skin thickness.

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Q. Zhao, Y. Suzuki, J. He, B. Zhou, M. Kimura. 2021-02-23. alpha clustering and neutron-skin thickness of carbon isotopes. https://doi.org/10.1140/epja/s10050-021-00465-0

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