Effects of Radiative Corrections in the Drell–Yan Process at Ultrahigh Dilepton Invariant Masses

One-loop electroweak and QCD radiative corrections in the Drell–Yan process at ultrahigh energies and dilepton invariant masses are calculated. The refactoring of the READY code is performed, and the integration procedure and the implementation of kinematical conditions and constraints are optimized. A detailed numerical analysis of the impact of radiative corrections to observed cross sections and forward–backward asymmetries is performed for the first time by means of the READY code for the CMS experiment in the Run3/HL mode of the Large Hadron Collider.