Title of article :
Study of Z boson pair production in e+e− collisions at LEP at s=189 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 :
363
To page :
375
Abstract :
The pair production of Z bosons is studied using the data collected by the L3 detector at LEP in 1998 in e+e− collisions at a centre-of-mass energy of 189 GeV. All the visible final states are considered and the cross section of this process is measured to be 0.74+0.15−0.14 (stat.) ±0.04 (syst.) pb. Final states containing b quarks are enhanced by a dedicated selection and their production cross section is found to be 0.18+0.09−0.07 (stat.) ±0.02 (syst.) pb. Both results are in agreement with the Standard Model predictions. Limits on anomalous couplings between neutral gauge bosons are derived from these measurements.
Journal title :
PHYSICS LETTERS B
Serial Year :
1999
Journal title :
PHYSICS LETTERS B
Record number :
912098
Link To Document :
https://search.isc.ac/dl/search/defaultta.aspx?DTC=10&DC=912098
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