QCD Corrections to Hadronic $Wγ$ Production with Non-standard $WWγ$ Couplings

Details QCD Corrections to Hadronic $Wγ$ Production with Non-standard $WWγ$ Couplings QCD Corrections to Hadronic $Wγ$ Production with Non-standard $WWγ$ Couplings

1993-05-25

arxiv.org/abs/hep-ph/9305314v1

Phys.Rev. D48 (1993) 5140-5161

Physics

High Energy Physics

High Energy Physics - Phenomenology

52 pages, REVTEX 2.0, 18 figures (uuencoded postscript files)

Scientific paper

10.1103/PhysRevD.48.5140

The process $p \pbar \rightarrow W^{\pm}\gamma + X \rightarrow \ell^\pm \nu \gamma + X$ is calculated to ${\cal O}(\alpha_s)$ for general $CP$ conserving $WW\gamma$ couplings. At the Tevatron center of mass energy, the QCD corrections to $W\gamma$ production are modest, and the Born and inclusive ${\cal O}(\alpha_s)$ cross sections have similar sensitivities to the effects of anomalous couplings. At supercollider energies, the inclusive QCD corrections are large at high photon transverse momenta, reducing the sensitivity to non-standard $WW\gamma$ couplings by up to a factor~2. The size of the QCD corrections can be reduced significantly, and a large fraction of the sensitivity lost can be regained, if a jet veto is imposed.

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