Nuclear EMC effect through $\bar{\mathrm{\Lambda }}\mathrm{/}\mathrm{\Lambda }$ production in semi-inclusive deep-inelastic scattering processes

We calculate $\mathrm{\Lambda }$ and $\bar{\mathrm{\Lambda }}$ hadron production cross sections in charged lepton semi-inclusive deep-inelastic scattering off nuclear target ($A$, using iron $\mathrm{F}\mathrm{e}$ as an example) and deuteron ($D$) target. The results show that the ratio $({\bar{\mathrm{\Lambda }}}^A\mathrm{/}{\mathrm{\Lambda }}^A)\mathrm{/}({\bar{\mathrm{\Lambda }}}^D\mathrm{/}{\mathrm{\Lambda }}^D)$ is sensitive to the sea quark content of the nucleus. We adopt three different models to take the nuclear EMC effect into account. The ratio $({\bar{\mathrm{\Lambda }}}^A\mathrm{/}{\mathrm{\Lambda }}^A)\mathrm{/}({\bar{\mathrm{\Lambda }}}^D\mathrm{/}{\mathrm{\Lambda }}^D)$ is predicted to be different by these different models.