Electroweak corrections to the Drell-Yan process in the high dimuon mass range

TL;DR

This paper calculates the complete electroweak radiative corrections to the Drell-Yan process at high dimuon masses, providing formulas and a FORTRAN code for accurate predictions relevant to LHC experiments.

Contribution

It presents explicit formulas for electroweak corrections and a ready-to-use FORTRAN code for high-energy Drell-Yan process analysis at the LHC.

Findings

Corrections become significant at high dimuon masses.

Complete corrections can alter the mass distribution by up to -35%.

The results are applicable for future high-energy collider experiments.

Abstract

The complete electroweak radiative O(\alpha) corrections to the Drell-Yan process at large invariant dimuon mass have been studied. All formulas for the cross sections and kinematical restrictions are presented in explicit form, for the simplification of calculation and coding the theta- and delta-functions are actively used. The FORTRAN code READY for the numerical analysis in the high energy region corresponding to the future experiments at the CERN Large Hadron Collider has been constructed. To simulate the detector acceptance we used the standard CMS detector cuts. The radiative corrections are found to become large at high dimuon mass M, the complete corrections at "bare" setup change the dimuon mass distribution up to ~ -5.6% (-23.2%; -35.3%) at the LHC energy and M=1 (3; 5)TeV.