https://doi.org/10.1140/epja/i2017-12245-2
Regular Article - Experimental Physics
Neutral-current weak interactions at an EIC
1
Department of Physics and Astronomy, Stony Brook University, 11794, Stony Brook, NY, USA
2
Physics Department, Brookhaven National Lab, 11793, Upton, NY, USA
* e-mail: yxzhao@jlab.org
Received:
20
December
2016
Accepted:
28
February
2017
Published online:
21
March
2017
A simulation study of measurements of neutral current structure functions of the nucleon at the future high-energy and high-luminosity polarized electron-ion collider (EIC) is presented. A new series of 
-Z interference structure functions, 
, 
, 
, 
become accessible via parity-violating asymmetries in polarized electron-nucleon deep inelastic scattering (DIS). Within the context of the quark-parton model, they provide a unique and, in some cases, yet-unmeasured combination of unpolarized and polarized parton distribution functions. The uncertainty projections for these structure functions using electron-proton collisions are considered for various EIC beam energy configurations. Also presented are uncertainty projections for measurements of the weak mixing angle 
using electron-deuteron collisions which cover a much higher 
than that accessible in fixed target measurements. QED and QCD radiative corrections and effects of detector smearing are included with the calculations.
© SIF, Springer-Verlag Berlin Heidelberg, 2017
