Simulation of Z-boson pT spectrum at LHC and Tevatron using GR@PPA
Abstract
Predictions from the GR@PPA event generator concerning the transverse-momentum (pT) spectrum of Z bosons are compared with recent measurements at LHC and Tevatron. The simulation results are in reasonable agreement with the measurements, although marginal discrepancies are observed in high-pT regions. The principal agreements imply that the leading-order simulation with a primitive parton shower based on the leading-logarithmic approximation still provides a reasonable description of the transverse motion of the hard-interaction system in hadron collisions, without the need to introduce noble techniques to incorporate higher-order corrections.
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