Study of anomalous ZZ g and Z gg couplings at LEP L 3 Collaboration

M. Acciarri, O. Adriani, M. Aguilar-Benitez, S., Ahlen, J. Alcaraz, G. Alemanni, J. Allaby, A. Aloisio, G. Ambrosi, H. Anderhub, V. P. Andreev, T., Angelescu, F. Anselmo, A. Arefiev, T. Azemoon, T. Aziz, L. Baksay, S. Banerjee, Sw. Banerjee, K. Banicz, P. Bartalini, A. Baschirotto, F. Becattini, U. Becker, F. Behner, P. Berges, Bhattacharya, J. J. Blaising, G. J. Bobbink, R. Bock, A. Bohm, L., Boldizsar, S. Braccini, F. Cesaroni, U. K. Chaturvedi, X. Chereau, R. Clare, G. Coignet, A. P. Colijn, A. Degre, M. T. Dova, D. Duchesneau, P. Duinker,H. El Mamouni, F. J. Eppling, P. Extermann, H. Fesefeldt, F. Filthaut

semanticscholar（2019）

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摘要

We search for anomalous ZZg and Zgg couplings with the L3 detector at LEP. The analysis is based on the study of the process e ' e ' TM Zg at center-of-mass energies in the range 161 GeV <'s < 183 GeV. No evidence for anomalous effects is found. Limits at the 95% confidence level are set on the values of the eight possible anomalous couplings. Depending on the type of coupling new physics scales below 213 GeV to 1083 GeV are excluded. © 1998 Elsevier Science B.V. All rights reserved.

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