Constraining a CP-violating WWV coupling from the W^+W^- threshold cross section at LEP2

Details Constraining a CP-violating WWV coupling from the W^+W^- threshold cross section at LEP2 Constraining a CP-violating WWV coupling from the W^+W^- threshold cross section at LEP2

1996-07-24

arxiv.org/abs/hep-ph/9607420v1

Phys.Lett. B388 (1996) 371-375

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, LaTeX file, 5 ps figures

Scientific paper

10.1016/S0370-2693(96)01148-3

The most general form of the $WWZ$ and $WW\gamma$ interaction contains a $CP$-violating term which has the same threshold behaviour as the Standard Model $\ee \to \ww$ cross section. We calculate the cross section as a function of the corresponding anomalous coupling, and estimate the bounds which can be obtained from a measurement of the threshold cross section at LEP2. We show how the effect of the coupling is most pronounced in the angular distributions of the final-state fermions.

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