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arXiv · hep-ph/9607353

Single-W production to test triple gauge boson couplings at LEP

Toshio Tsukamoto·Yoshimasa Kurihara
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Abstract

We present a study of single-W production ($e^+e^-\to e^-\barν_e W^+$) as a new probe of the anomalous couplings at the LEP energy region. We introduce simple cuts to separate the single-W process from W-pair production and have performed cross-section calculations using 4-fermion generator ``grc4f''. The cross-section of the single-W process is found to be large enough to detect at LEP experiments in the near future. In addition, a high sensitivity to the anomalous coupling of the $WWγ$ vertex is expected since the amplitude of the $WWγ$ diagram makes a dominant contribution in this process. We have found that the cross-section measurement of the single-W process in the LEP2 energy region can give complementary bounds on the anomalous couplings to those obtained from W-pair analysis.

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Toshio Tsukamoto, Yoshimasa Kurihara. 1996-09-12. Single-W production to test triple gauge boson couplings at LEP. https://doi.org/10.1016/s0370-2693(96)01240-3

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