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Two-scale scalar mesons in nuclei

K. Saito·H. Kouno·K. Tsushima·A. W. Thomas
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Abstract

We generalize the linear sigma model in order to develop a chiral-invariant model of nuclear structure. The model is natural, and contains not only the usual sigma meson which is the chiral partner of the pion but also a new chiral-singlet that is responsible for the medium-range nucleon-nucleon attraction. This approach provides significant advantages in terms of its description of nuclear matter and finite nuclei in comparison with conventional models based on the linear sigma model.

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K. Saito, H. Kouno, K. Tsushima, A. W. Thomas. 2005-03-10. Two-scale scalar mesons in nuclei. https://doi.org/10.1140/epja%2Fi2005-10170-7

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