Electroweak O(alpha) Corrections to W+W- Pair Production in Polarized gamma-gamma Collisions

Details Electroweak O(alpha) Corrections to W+W- Pair Production in Polarized gamma-gamma Collisions Electroweak O(alpha) Corrections to W+W- Pair Production in Polarized gamma-gamma Collisions

1996-12-17

arxiv.org/abs/hep-ph/9612380v1

Nucl.Phys. B494 (1997) 19-40

Physics

High Energy Physics

High Energy Physics - Phenomenology

23 pages, 9 Postscript figures, uses epsfig.sty

Scientific paper

10.1016/S0550-3213(97)00170-3

Full O(alpha) electroweak corrections for gamma-gamma-> W+W- are calculated including virtual corrections, soft and hard real photon and Z-boson emission. The corrections are quite large ranging from -2.5% at 500 GeV to -18% at 2 TeV, |cos\theta^\pm| < cos(10^\circ). Contributions from real photon and Z-boson emission are important at high energies where they partly cancel large negative contribution originating from virtual bosonic corrections. Precision measurements that intend to uncover physics beyond the standard model must necessarily make use of the full standard model predictions including O(alpha) corrections.

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