Abstract
The combined results from ep → νWX, ep → eWX, and ep → νγX processes at HERA are used to constrain anomalous three-boson couplings. The effective model for anomalous couplings where there is no light Higgs boson and where interactions responsible for the breakdown of electroweak symmetry are strongly coupled is considered. Bounds on the couplings L 9L and L 9R , which parametrize contributions from the anomalous WWγ (WWZ) vertices, attainable from an analysis of the distributions for the processes in question are presented. The results are compared with the bounds resulting from the LEP I and LEP II data. It is shown that the bounds coming from HERA significantly reduce the parameter region allowed by the analysis of the LEP I and LEP II data.
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From Yadernaya Fizika, Vol. 63, No. 5, 2000, pp. 929–939.
Original English Text Copyright © 2000 by Likhoded, Onishchenko.
This article was submitted by the authors in English.
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Likhoded, A.A., Onishchenko, A.I. Can HERA data improve the LEP constraints on the WWV vertex?. Phys. Atom. Nuclei 63, 859–869 (2000). https://doi.org/10.1134/1.855717
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DOI: https://doi.org/10.1134/1.855717