Two-scale scalar mesons in nuclei

Details Two-scale scalar mesons in nuclei Two-scale scalar mesons in nuclei

2005-03-09

arxiv.org/abs/nucl-th/0503022v2

Eur.Phys.J.A26:159-165,2005

Physics

Nuclear Physics

Nuclear Theory

12 pages, including 3 tables and 3 figures; preprint number is added

Scientific paper

10.1140/epja/i2005-10170-7

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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