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

1999/07/05 by A. Werthenbach, Anja Werthenbach, Werthenbach, Anja
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Quantum Mechanics and Applications #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9907242

9 pages, 5 figures, LaTeX, Talk given at the 36th International School of Subnuclear Physics, Erice, 29 Aug - 7 Sep 1998. To appear in the Proceedings. For more details see hep-ph/9905341

arxiv created 1999/07/05 · openalex publication_date 1999/07/05 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The vanishing of the cross section for particular points in phase space - radiation zeros - is examined for the process q q → W⁺W^- γ 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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