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One-loop electromagnetic radiative corrections to dilepton production in hadron–hadron collisions via photon–photon fusion are studied; particular attention is given to hard bremsstrahlung. The reaction in question accompanies the Drell–Yan process, its investigation being a task of great importance in the experimental program for the Large Hadron Collider (LHC). A detailed numerical analysis of effects of electromagnetic radiative corrections to observed cross sections is performed over a wide kinematical region, including that of the CMS experiment in the LHC Run3/HL mode, which corresponds to ultrahigh energies and dilepton invariant masses.
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V. Zykunov (2022) studied this question.
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