We investigate neutron star properties by constructing a chiral SU(3) spontaneous breaking Lagrangian and using relativistic mean-field approximation. The results show that condensate appears at some baryon densities...We investigate neutron star properties by constructing a chiral SU(3) spontaneous breaking Lagrangian and using relativistic mean-field approximation. The results show that condensate appears at some baryon densities, and hyperons and exist in neutron star matter at high density. In this model, neutron star's maximum mass is with corresponding radius about 8 km.展开更多
A quantitative criterion is proposed for testing the rationality of an effective QCD baryon theory.The higher order corrections of the standard SU(3)Skyrme model to the Gell-Mann-Okubo relations for baryons are studie...A quantitative criterion is proposed for testing the rationality of an effective QCD baryon theory.The higher order corrections of the standard SU(3)Skyrme model to the Gell-Mann-Okubo relations for baryons are studied according to the criterion,and some interesting results are presented.A possible prescription is recommended.展开更多
We investigate the effect of intrinsic sea quark-antiquark pairs on the magnetic moments of the SU(3)octet baryons.The intrinsic quark-antiquark pairs are introduced by a model of energetically-favoured non-perturbati...We investigate the effect of intrinsic sea quark-antiquark pairs on the magnetic moments of the SU(3)octet baryons.The intrinsic quark-antiquark pairs are introduced by a model of energetically-favoured non-perturbative baryon-meson fluctuations.It is shown that the baryon-meson fluctuation model provides a mechanism of SU(3)symmetry breaking in the baryon sea and is related to the violations of Gell-Mann-Okubo and Coleman-Glashow sum rules for the baryon magnetic moments.Such a model is also consistent with its explanation of the violations of Gottfried and Ellis-Jaffe sum rules in deep inelastic scattering.展开更多
Following the Projection-Gell-Mann Standard Model obtained from 5D homogeneous space-time, we extended to the definition of Strange and Charm quarks from the SU(3) fractional charged generators superposition represent...Following the Projection-Gell-Mann Standard Model obtained from 5D homogeneous space-time, we extended to the definition of Strange and Charm quarks from the SU(3) fractional charged generators superposition representations, and calculated all the well-known baryon masses. The results indicate how the Orthogonality between the SU(2) × L and SU(3) × L manifolds is broken in the hadrons, such that the superposition of the time projection Po, and the conformal space projection P1 are established, the basic requirement for General Relativity and the establishment of the Riemannian curvature in the presence of mass.展开更多
Large SU(3) symmetry breaking effects in J/ψ -B decay processes are discressed using the Mark I,Mark H, DM2 and the recent data from BES Collaboration.
基金The project supported in part by the Key Research Plan of Theoretical Physics and Cross Science under Grant No.90103018National Natural Science Foundation of China under Grant No.19975062
文摘We investigate neutron star properties by constructing a chiral SU(3) spontaneous breaking Lagrangian and using relativistic mean-field approximation. The results show that condensate appears at some baryon densities, and hyperons and exist in neutron star matter at high density. In this model, neutron star's maximum mass is with corresponding radius about 8 km.
基金Supported by the National Natural Science Foundation of China through C.N.Yanghe Science Fund of the Chinese Academy of Sciences.
文摘A quantitative criterion is proposed for testing the rationality of an effective QCD baryon theory.The higher order corrections of the standard SU(3)Skyrme model to the Gell-Mann-Okubo relations for baryons are studied according to the criterion,and some interesting results are presented.A possible prescription is recommended.
基金Supported in part by the National Natural Science Foundation of China under Grant No.19975052.
文摘We investigate the effect of intrinsic sea quark-antiquark pairs on the magnetic moments of the SU(3)octet baryons.The intrinsic quark-antiquark pairs are introduced by a model of energetically-favoured non-perturbative baryon-meson fluctuations.It is shown that the baryon-meson fluctuation model provides a mechanism of SU(3)symmetry breaking in the baryon sea and is related to the violations of Gell-Mann-Okubo and Coleman-Glashow sum rules for the baryon magnetic moments.Such a model is also consistent with its explanation of the violations of Gottfried and Ellis-Jaffe sum rules in deep inelastic scattering.
文摘Following the Projection-Gell-Mann Standard Model obtained from 5D homogeneous space-time, we extended to the definition of Strange and Charm quarks from the SU(3) fractional charged generators superposition representations, and calculated all the well-known baryon masses. The results indicate how the Orthogonality between the SU(2) × L and SU(3) × L manifolds is broken in the hadrons, such that the superposition of the time projection Po, and the conformal space projection P1 are established, the basic requirement for General Relativity and the establishment of the Riemannian curvature in the presence of mass.
文摘Large SU(3) symmetry breaking effects in J/ψ -B decay processes are discressed using the Mark I,Mark H, DM2 and the recent data from BES Collaboration.
