Relativistic Mean-Field Model with Scaled Hadron Masses and Couplings

Details Relativistic Mean-Field Model with Scaled Hadron Masses and Couplings Relativistic Mean-Field Model with Scaled Hadron Masses and Couplings

2008-02-27

arxiv.org/abs/0802.3999v2

Nucl.Phys.A813:313-346,2008

Physics

Nuclear Physics

Nuclear Theory

44 pages, 14 figures; corrected according to referee's remarks, version accepted for publication in Nucl. Phys. A

Scientific paper

10.1016/j.nuclphysa.2008.09.013

Here we continue to elaborate properties of the relativistic mean-field based model (SHMC) proposed in ref. [6] where hadron masses and coupling constants depend on the $\sigma$-meson field. The validity of approximations used in [6] is discussed. We additionally incorporate contribution of meson excitations to the equations of motion. We also estimate the effects of the particle width. It is demonstrated that the inclusion of the baryon-baryon hole and baryon-antibaryon loop terms, if performed perturbatively, destroys the consistency of the model.

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