Remarkable virtual supersymmetric effects in W{sup {+-}} production at high energy hadron colliders
- Department of Theoretical Physics, Aristotle University of Thessaloniki, Gr-54124, Thessaloniki (Greece)
- Laboratoire de Physique Theorique et Astroparticules, UMR 5207, Universite Montpellier II, F-34095 Montpellier Cedex 5 (France)
We present a complete 1-loop study of the electroweak corrections to the process ug{yields}dW{sup +} in the minimal supersymmetric standard model and the standard model. The occurrence of a number of remarkable properties in the behavior of the helicity amplitudes at high energies is stressed, and the crucial role of the virtual supersymmetric (SUSY) contributions in establishing them is emphasized. The approach to asymptopia of these amplitudes is discussed, comparing the effects of the logarithmic and constant contributions to the mass-suppressed ones, which are relevant at lower energies. Applying crossing to ug{yields}dW{sup +}, we obtain all subprocesses needed for the 1-loop electroweak corrections to W{sup {+-}}-production at LHC. The SUSY model dependence of such a production is then studied, and illustrations are given for the transverse W{sup {+-}} momentum distribution, as well as the angular distribution in the subprocess center of mass.
- OSTI ID:
- 21035677
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 77, Issue 1; Other Information: DOI: 10.1103/PhysRevD.77.013003; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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