Radiation Zeros as an Observable to test Physics beyond the Standard Model

Details Radiation Zeros as an Observable to test Physics beyond the Standard Model Radiation Zeros as an Observable to test Physics beyond the Standard Model

1999-07-05

arxiv.org/abs/hep-ph/9907242v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 5 figures, LaTeX, Talk given at the 36th International School of Subnuclear Physics, Erice, 29 Aug - 7 Sep 1998. To a

Scientific paper

The vanishing of the cross section for particular points in phase space - radiation zeros - is examined for the process $ q \bar q \to W^+W^- \gamma$ at high energy. For photon energies that are not too large, the cross section does exhibit deep dips in regions of phase space corresponding to the position of the actual zeros. We show that in these regions the sensitivity to possible anomalous quartic couplings is very large.

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