A Measurement of the QCD color factor ratios C(A) / C(F) and T(F) / C(F) from angular correlations in four jet events
Collaboration
27 pages
Published in:
- Z.Phys.C 65 (1995) 367-378
DOI:
Report number:
- CERN-PPE-94-135
Experiments:
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Abstract: (Springer)
From 1 105 045 hadronic Z0 decays observed with the OPAL detector at the LEP e+e− collider, 21 732 four-jet events are selected. A simultaneous fit of three selected angular variables from these events by the second order QCD matrix element calculation yieldsCA/CF=2.11±0.16(stat.)±0.28(syst.)TF/CF=0.40±0.11(stat.)±0.14(syst.) for the ratios of colour factors, in agreement with SU(3) expectations ofCA/CF=9/4 andTF/CF=3/8.- electron positron: colliding beams
- colliding beams: electron positron
- electron positron: annihilation
- annihilation: electron positron
- Z0: electroproduction
- electroproduction: Z0
- Z0: nonleptonic decay
- nonleptonic decay: Z0
- final state: (4jet)
- (4jet): final state
References(26)
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