# Search for anomalous $ZZ\gamma$ and $Z\gamma\gamma$ couplings in the process $e^+e^- \to Z\gamma$ at LEP

3 CMS
IP2I Lyon - Institut de Physique des 2 Infinis de Lyon
Abstract : We search for anomalous trilinear gauge couplings in the ${\rm ZZ}\gamma$ and ${\rm Z}\gamma\gamma$ vertices using data collected with the L3 detectorat LEP at a centre--of--mass energy $\sqrt{s}=189$ GeV. No evidence is found and limits on these couplings and on new physics scales are derived from the analysis of the process ${\rm e}^{+}{\rm e}^{-} \rightarrow {\rm Z} \gamma$.
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Journal articles

http://hal.in2p3.fr/in2p3-00005353
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Submitted on : Monday, October 2, 2000 - 9:18:20 AM
Last modification on : Friday, September 10, 2021 - 1:50:04 PM

### Citation

M. Acciarri, P. Achard, O. Adriani, M. Aguilar-Benitez, J. Alcaraz, et al.. Search for anomalous $ZZ\gamma$ and $Z\gamma\gamma$ couplings in the process $e^+e^- \to Z\gamma$ at LEP. Physics Letters B, Elsevier, 2000, 489, pp.55-64. ⟨10.1016/S0370-2693(00)00886-8⟩. ⟨in2p3-00005353⟩

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