Title of article
Study of neutral-current four-fermion and ZZ production in e+e− collisions at s= 183 GeV
Author/Authors
L3 Collaboration، نويسنده , , M. Acciarri، نويسنده , , P. Achard، نويسنده , , O. Adriani، نويسنده , , M. Aguilar-Benitez، نويسنده , , J. Alcaraz، نويسنده , , G. Alemanni، نويسنده , , J. Allaby، نويسنده , , A. Aloisio، نويسنده , , M.G. Alviggi، نويسنده , , G. Ambrosi، نويسنده , , H. Anderhub، نويسنده , , V.P. Andreev، نويسنده , , T. Angelescu، نويسنده , , F. Anselmo، نويسنده , , A. Arefiev، نويسنده , , T. Azemoon، نويسنده , , T. Aziz، نويسنده , , P. Bagnaia، نويسنده , , L. Baksay، نويسنده , , et al.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1999
Pages
13
From page
281
To page
293
Abstract
A study of neutral-current four-fermion processes is performed using a data sample corresponding to 55.3 pb−1 of integrated luminosity collected by the L3 detector at LEP at an average centre-of-mass energy of 183 GeV. The neutral-current four-fermion cross sections for final states with a pair of charged leptons plus jets and with four charged leptons are measured to be consistent with the Standard Model predictions.
Events with fermion pair masses close to the Z boson mass are selected in all observable final states and the ZZ production cross section is measured to be σZZ=0.30+0.22 +0.07−0.16 −0.03 pb, in agreement with the Standard Model expectation. No evidence for the existence of anomalous triple gauge boson ZZZ and ZZγ couplings is found and limits on these couplings are set.
Journal title
PHYSICS LETTERS B
Serial Year
1999
Journal title
PHYSICS LETTERS B
Record number
911128
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