Energy-scaling behavior of intrinsic transverse momentum parameters in Drell-Yan simulation

Abstract

An analysis is presented based on models of the intrinsic transverse momentum (intrinsic $k_{\mathrm{T}}$) of partons in nucleons by studying the dilepton transverse momentum in Drell-Yan events. Using parameter tuning in event generators and existing data from fixed-target experiments and from hadron colliders, our investigation spans three orders of magnitude in center-of-mass energy and two orders of magnitude in dilepton invariant mass. The results show an energy-scaling behavior of the intrinsic $k_{\mathrm{T}}$ parameters, independent of the dilepton invariant mass at a given center-of-mass energy.

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