Measurement of the e+e- → Zγγ cross section and determination of quartic gauge boson couplings at LEP

L3 Collaboration

doi:10.1016/S0370-2693(00)00279-3

Measurement of the e⁺e^- → Zγγ cross section and determination of quartic gauge boson couplings at LEP

L3 Collaboration

Physics

National Institute for Nuclear Physics
University of Geneva
University of Florence
CIEMAT
University of Lausanne
CERN
Swiss Federal Institute of Technology Zurich
Louisiana State University
Nuclear Physics Institute
University of Bucharest
University of Bologna
Alikhanov Institute for Theoretical and Experimental Physics
University of Michigan, Ann Arbor
Tata Institute of Fundamental Research
University of Rome La Sapienza
University of Alabama
IN2P3-CNRS
Paul Scherrer Institute
University of Perugia
Massachusetts Institute of Technology
Carnegie Mellon University
University of Amsterdam
RWTH Aachen University
Hungarian Academy of Sciences

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

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.

Original language	English
Pages (from-to)	39-49
Number of pages	11
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	478
Issue number	1-3
DOIs	https://doi.org/10.1016/S0370-2693(00)00279-3
State	Published - Apr 6 2000

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@article{7ec25a5e2c1f4fdd821be40ee2cb5998,

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 D. Bourilkov and I. Iashvili",

year = "2000",

month = apr,

day = "6",

doi = "10.1016/S0370-2693(00)00279-3",

language = "English",

volume = "478",

pages = "39--49",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "1-3",

}

TY - JOUR

T1 - Measurement of the e+e- → Zγγ cross section and determination of quartic gauge boson couplings at LEP

AU - L3 Collaboration

AU - Acciarri, M.

AU - Achard, P.

AU - Adriani, O.

AU - Aguilar-Benitez, M.

AU - Alcaraz, J.

AU - Alemanni, G.

AU - Allaby, J.

AU - Aloisio, A.

AU - Alviggi, M. G.

AU - Ambrosi, G.

AU - Anderhub, H.

AU - Andreev, V. P.

AU - Angelescu, T.

AU - Anselmo, F.

AU - Arefiev, A.

AU - Azemoon, T.

AU - Aziz, T.

AU - Bagnaia, P.

AU - Baksay, L.

AU - Balandras, A.

AU - Ball, R. C.

AU - Banerjee, S.

AU - Banerjee, Sw

AU - Barczyk, A.

AU - Barillère, R.

AU - Barone, L.

AU - Bartalini, P.

AU - Basile, M.

AU - Battiston, R.

AU - Bay, A.

AU - Becattini, F.

AU - Becker, U.

AU - Behner, F.

AU - Bellucci, L.

AU - Berdugo, J.

AU - Berges, P.

AU - Bertucci, B.

AU - Betev, B. L.

AU - Bhattacharya, S.

AU - Biasini, M.

AU - Biglietti, M.

AU - Biland, A.

AU - Blaising, J. J.

AU - Blyth, S. C.

AU - Bobbink, G. J.

AU - Böhm, A.

AU - Boldizsar, L.

AU - Borgia, B.

AU - Bourilkov, D.

AU - Iashvili, I.

PY - 2000/4/6

Y1 - 2000/4/6

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/0034611580

U2 - 10.1016/S0370-2693(00)00279-3

DO - 10.1016/S0370-2693(00)00279-3

M3 - Article

AN - SCOPUS:0034611580

SN - 0370-2693

VL - 478

SP - 39

EP - 49

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-3

ER -

Measurement of the e⁺e^- → Zγγ cross section and determination of quartic gauge boson couplings at LEP

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