A coarse two-bin ratio of Drell-Yan transverse momentum cross sections can determine the intrinsic kT width with sensitivity comparable to fine binned spectra, as shown by pseudo-data and CMS data.
Energy-scaling behavior of intrinsic transverse momentum parameters in Drell-Yan simulation
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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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Coarse-grained binning in Drell-Yan transverse momentum spectra
A coarse two-bin ratio of Drell-Yan transverse momentum cross sections can determine the intrinsic kT width with sensitivity comparable to fine binned spectra, as shown by pseudo-data and CMS data.