@article{3f307db76ee44ca485e98a4b9e29678b,
title = "Measurement of the e+e- → Zγγ cross section and determination of quartic gauge boson couplings at LEP",
abstract = "A first measurement of the cross section of the process e+e- → Zγγ is reported using a total integrated luminosity of 231 pb-1 collected with the L3 detector at centre-of-mass energies of 182.7 GeV and 188.7 GeV. By selecting hadronic events with two isolated photons the e+e- → Zγγ cross section is measured to be 0.49-0.17/+0.20 ± 0.04 pb at 182.7GeV and 0.47 ± 0.10 ± 0.04 pb at 188.7 GeV. The measurements are consistent with Standard Model expectations. Limits on Quartic Gauge Boson Couplings a0/Λ2 and a(c)/Λ2 of -0.009 GeV-2 < a0/Λ2 < 0.008 GeV-2 and -0.007 GeV-2 < a(c)/Λ2 < 0.013 GeV-2 are derived at 95% confidence level.",
author = "{L3 Collaboration} and M. Acciarri and P. Achard and O. Adriani and M. Aguilar-Benitez and J. Alcaraz and G. Alemanni and J. Allaby and A. Aloisio and Alviggi, {M. G.} and G. Ambrosi and H. Anderhub and Andreev, {V. P.} and T. Angelescu and F. Anselmo and A. Arefiev and T. Azemoon and T. Aziz and P. Bagnaia and L. Baksay and A. Balandras and Ball, {R. C.} and S. Banerjee and Sw Banerjee and A. Barczyk and R. Barill{\`e}re and L. Barone and P. Bartalini and M. Basile and R. Battiston and A. Bay and F. Becattini and U. Becker and F. Behner and L. Bellucci and J. Berdugo and P. Berges and B. Bertucci and Betev, {B. L.} and S. Bhattacharya and M. Biasini and M. Biglietti and A. Biland and Blaising, {J. J.} and Blyth, {S. C.} and Bobbink, {G. J.} and A. B{\"o}hm and L. Boldizsar and B. Borgia and Chang, {Y. H.} and Tsung-Tai Lin",
note = "Publisher Copyright: (C) 2000 Published by Elsevier Science B.V.",
year = "2000",
month = apr,
day = "6",
doi = "10.1016/S0370-2693(00)00279-3",
language = "???core.languages.en_GB???",
volume = "478",
pages = "39--49",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
number = "1-3",
}