A Chiral Symmetric Relativistic Mean Field Model with a Logarithmic sigma Potential | Zendy

Kohsuke Tsubakihara | Zendy; Akira Ohnishi | Zendy

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A Chiral Symmetric Relativistic Mean Field Model with a Logarithmic sigma Potential

Author(s) -

Kohsuke Tsubakihara,

Akira Ohnishi

Publication year - 2007

Publication title -

progress of theoretical physics

Language(s) - English

Resource type - Journals

eISSN - 1347-4081

pISSN - 0033-068X

DOI - 10.1143/ptp.117.903

Subject(s) - physics , mean field theory , baryon , sigma , logarithm , nuclear matter , sigma model , quantum chromodynamics , quantum electrodynamics , lattice qcd , lattice (music) , nuclear physics , quantum mechanics , nucleon , mathematics , nonlinear system , acoustics , mathematical analysis

We develop a chiral symmetric relativistic mean field model with logarithmicsigma potential derived in the strong coupling limit of the lattice QCD. Wefind that both of the nuclear matter and finite nuclei are well described inthe present model. The normal vacuum is found to have global stability at zeroand finite baryon densities, and an equation of state with moderate stiffness(K ~ 280 MeV) is obtained. The binding energies and charge radii of Z closedeven-even nuclei are well reproduced in a wide mass range from C to Pbisotopes, except for the underestimates of binding energies in several jjclosed nuclei.Comment: 19 pages, 6 figure

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