Nucleon sea in the effective chiral quark model
Nucleon sea in the effective chiral quark model
The asymmetries of both light-flavor antiquark $\overline{d}(x)\ensuremath{-}\overline{u}(x)$ and strange-antistrange $s(x)\ensuremath{-}\overline{s}(x)$ distributions of the nucleon sea are considered with more details in the effective chiral quark model. We find that the asymmetric distribution of light-flavor antiquarks $\overline{d}(x)\ensuremath{-}\overline{u}(x)$ matches the experimental data well and that the asymmetry of strange and antistrange distributions …