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arXiv · hep-ph/9804317

A matrix-element-based modification of the parton shower

Gabriela Miu
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Abstract

The transverse momentum distribution of W+/- bosons at hadron colliders is well described by a parton-shower model for small pT values, but not for large ones. This article is an attempt to give a better description of the distribution by using corrections derived from the matrix-element formalism. The parton shower for qqbar->W+/- has been modified to resemble the matrix elements of qqbar->gW and qg->q'W at large pT values. Comparisons between different approaches are presented at sqrt{s}=1800 GeV. The results are also compared with experimental data from the D0 collaboration at Fermilab.

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Gabriela Miu. 1998-04-17. A matrix-element-based modification of the parton shower. https://arxiv.org/abs/hep-ph/9804317

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