`$f_0 (600)$' and chiral dynamics

Details `$f_0 (600)$' and chiral dynamics `$f_0 (600)$' and chiral dynamics

2009-05-29

arxiv.org/abs/0905.4827v1

Physics

Nuclear Physics

Nuclear Theory

8 pages, 5 Figures

Scientific paper

The role of light scalar meson `$f_0 (600)$' is investigated in nuclear matter in an Effective chiral model in the mean-field approach. For the purpose, we scan the properties of the matter at various saturation densities imposing constraint such as the vacuum value of the pion decay constant $f_{\pi} \approx 131 ~MeV$. With a simple approach, the bound on the mass of the scalar meson is calculated and found in the range $m_{\sigma} = 546 \pm 10 MeV$. Further, the present analysis show that nuclear matter favor high nucleon effective mass and dominant repulsive forces at high density, the insight and the implications of which are discussed.

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