Nucleon sea in the effective chiral quark model

Yong Ding, Rong-Guang Xu, Bo-Qiang Ma

The asymmetries of both light-flavor antiquark $\bar{d}(x)-\bar{u}(x)$ and strange-antistrange $s(x)-\bar{s}(x)$ distributions of the nucleon sea are considered with more details i…