$W\gamma$ and $Z\gamma$ production at hadron colliders

D. de Florian; A. Signer

doi:doi:10.1007/s100520050007

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\n This email address is being protected from spambots. You need JavaScript enabled to view it. ), CBLU, University of Leeds * revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan * with significant contributions from: Jens Lippmann, Marek Rouchal, Martin Wilck and others --> Eur. Phys. J. C 16, 105-114
DOI 10.1007/s100520000412

$W\gamma$ and $Z\gamma$ production at hadron colliders

D. de Florian¹ - A. Signer²

¹ Theoretical Physics, ETH Zürich, Switzerland
² Department of Physics, University of Durham, Durham DH1 3LE, UK

Received: 14 February 2000 / Published online: 18 May 2000 - © Springer-Verlag 2000

Abstract
We present a general purpose Monte Carlo program for the calculation of any infrared safe observable in $W\gamma$ and $Z\gamma$ production at hadron colliders at next-to-leading order in $\alpha_s$ . We treat the leptonic decays of the W and Z-boson in the narrow-width approximation, but retain all spin information via decay angle correlations. The effect of anomalous triple gauge boson couplings is investigated and we give the analytical expressions for the corresponding amplitudes. Furthermore, we propose a way to study the effect of anomalous couplings without introducing the ambiguity of form factors.