Speaker
Yuxiang Zhao
Description
We discuss measurements of parity violating asymmetries in the DIS region at an EIC with high luminosity. With $\gamma Z$ interference in the electroweak processes, the parity violating asymmetries are associated with a new series of structure functions, $F_1^{\gamma Z}$ , $F_3^{\gamma Z}$ , $g_1^{\gamma Z}$ , $g_5^{\gamma Z}$ , which provide unique, yet unmeasured, combinations of unpolarized/polarized parton distribution functions. We will present the projections of these structure functions from electron-proton collisions at future EIC with different beam energy configurations considering QED, QCD radiative corrections as well as corrections of detector smearing. We will also present the weak mixing angle $\sin^2 (\theta_W)$ study at much higher $Q^2$ range than fixed target measurements using electron-deuteron collisions at an EIC.