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Understanding Effect of Tensor Interactions on Structure of Light Atomic Nuclei

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Abstract

For more than 50 years after the birth of the nuclear shell model, nuclear physics seemed to be spared the trouble of confronting the fundamental issue in nuclear structure: How do the nucleon-nucleon interactions, for instance, the realistic ones constructed from nucleon-nucleon scattering data, influence or even dictate the structure of atomic nuclei? However, the observations of the evolution of shell structure in nuclei far from the stability line expose the need to understand the effects of the nucleon-nucleon interactions. The successful measurements of high-momentum nucleons from correlated nucleon pairs, which arise naturally from the nucleon-nucleon interactions such as the tensor interactions, in nuclei suggest the possibility to study their effects. Here, we report on experimental evidence for the \(Z=6\) subshell closure in neutron-rich carbon isotopes and observations of the effect of tensor interactions in \(^{16}\)O via high-momentum-transfer neutron picked-up reactions. Providing a brief summary of the recent developments, we introduce our future plans to study the effect of tensor interactions on the shell evolution.

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Notes

  1. Unless otherwise stated, the short-range interactions are referred to as the repulsive hard-core interactions in this paper.

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Acknowledgements

The author thanks the collaborators of the RCNP-E314, GSI-S395, RCNP-E372, RCNP-E396, RCNP-E443, GSI-S436 and CYRIC-134-930-15 experiments.

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  1. Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou, 730000, China

    H. J. Ong

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Ong, H.J. Understanding Effect of Tensor Interactions on Structure of Light Atomic Nuclei. Few-Body Syst 62, 86 (2021). https://doi.org/10.1007/s00601-021-01668-3

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