EPJ

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EPJ C - Particles and Fields
Particles and Fields


Eur. Phys. J. C 20, 349-356
DOI: 10.1007/s100520100666

Soft gluon resummation in transverse momentum space for electroweak boson production at hadron colliders

A. Kulesza1 and W.J. Stirling2

1  Department of Physics, Brookhaven National Laboratory, Upton, NY 11973, USA
2  Institute for Particle Physics Phenomenology, University of Durham, Durham DH1 3LE, UK

(Received: 14 March 2001 / Published online: 11 May 2001 -© Springer-Verlag / Società Italiana di Fisica 2001 )

Abstract
The distribution of W and Z bosons produced with small transverse momentum ( ${p_{{\tiny T}}}$) at hadron colliders receives important contributions from large logarithms arising from soft gluon emission. Although conventionally the all-orders resummation of these `Sudakov' logarithms is performed in impact parameter (Fourier transform) space, ${p_{{\tiny T}}}$-space resummation is also possible, and offers certain advantages. We present a detailed phenomenological analysis of W and Z production at small ${p_{{\tiny T}}}$ at the Tevatron $p \bar p$ collider, using ${p_{{\tiny T}}}$-space resummation. A good description of the CDF and D0 data can be obtained provided a significant non-perturbative contribution is included. We also present predictions for the LHC.



© Società Italiana di Fisica, Springer-Verlag 2001

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