Production of Large Transverse Momentum W Bosons at the Tevatron

Details Production of Large Transverse Momentum W Bosons at the Tevatron Production of Large Transverse Momentum W Bosons at the Tevatron

2004-09-29

arxiv.org/abs/hep-ph/0409337v1

'Focus on Boson Research'. Nova Science Publishers, New York, 2006. (ISBN 1-59454-520-0). pp. 209-223.

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 8 figures, contribution to the edited book "Progress in Boson Research"

Scientific paper

We discuss the production of W bosons at large transverse momentum in p pbar collisions at the Tevatron Run I and II. W boson hadroproduction is a process of relevance in testing the Standard Model and in estimates of backgrounds to new physics. The next-to-leading order cross section in the region of large transverse momentum is dominated by threshold soft-gluon corrections which arise from incomplete cancellations near partonic threshold between graphs with real emission and virtual graphs due to the limited phase space available for real gluon emission. In this contribution it is shown how, by including next-to-next-to-leading-order (NNLO) soft-gluon corrections, the transverse momentum distribution of the W at the Tevatron is modestly enhanced and the dependence on the factorization and renormalization scales is significantly reduced.

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