High precision measurements of αs at the future EIC

We present a projection study for the first moments of the inclusive spin structure function R g1 (x;Q2)dx for the proton and neutron from simulated doubly-polarized→e→p and→e-3He collision data expected from the Electron Ion Collider. For detection and extraction of the neutron spin asymmetries from→e-3He collisions, we used the double-tagging method which significantly reduces the uncertainty over the traditional inclusive method. Using the Bjorken Sum Rule, the projected results allow us to determine that the QCD coupling at the Z-pole αs(M2 Z0) can be measured with a relative precision of 1.3%. This underscores the significance of the EIC for achieving precision determinations of αs.