A simultaneous measurement of the QCD colour factors and the strong coupling

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@article{aa9090a360d9409fb0547928663deb19,
title = "A simultaneous measurement of the QCD colour factors and the strong coupling",
abstract = "Using data from e(+)e(-) annihilation into hadrons, taken with the OPAL detector at LEP at the Z pole between 1991 and 1995, we performed a simultaneous measurement of the colour factors of the underlying gauge group of the strong interaction, C-F and C-A, and the strong coupling, alpha (s). The measurement was carried out by fitting next-to-leading order perturbative predictions to measured angular correlations of 4-jet events together with multi-jet related variables. Our results, C-A = 3.02 +/- 0.25(stat.) +/- 0.49(syst.), CF = 1.34 +/- 0.13(stat.) +/- 0.22(syst.), alpha (s) (M-Z) = 0.120 +/- 0.011(stat.) +/- 0.020(syst,), provide a test of perturbative QCD in which the only assumptions are non-abelian gauge symmetry and standard hadronization models. The measurements are in agreement with SU(3) expectations for C-F and C-A and the world average of alpha (s)(M-Z).",
author = "G Abbiendi and Georgios Anagnostou and Ian Bloodworth and David Charlton and Christopher Hawkes and Roger Homer and Predrag Jovanovic and Alun Lloyd and Thomas McMahon and Stephen O'Neale and Scott Talbot and Miriam Watson and Peter Watkins and Alan Watson and Nigel Watson and John Wilson",
year = "2001",
month = may,
day = "1",
doi = "10.1007/s100520100699",
language = "English",
volume = "20",
pages = "601--615",
journal = "Eur. Phys. J. C",
issn = "1434-6044",
publisher = "Springer",
number = "4",

}

RIS

TY - JOUR

T1 - A simultaneous measurement of the QCD colour factors and the strong coupling

AU - Abbiendi, G

AU - Anagnostou, Georgios

AU - Bloodworth, Ian

AU - Charlton, David

AU - Hawkes, Christopher

AU - Homer, Roger

AU - Jovanovic, Predrag

AU - Lloyd, Alun

AU - McMahon, Thomas

AU - O'Neale, Stephen

AU - Talbot, Scott

AU - Watson, Miriam

AU - Watkins, Peter

AU - Watson, Alan

AU - Watson, Nigel

AU - Wilson, John

PY - 2001/5/1

Y1 - 2001/5/1

N2 - Using data from e(+)e(-) annihilation into hadrons, taken with the OPAL detector at LEP at the Z pole between 1991 and 1995, we performed a simultaneous measurement of the colour factors of the underlying gauge group of the strong interaction, C-F and C-A, and the strong coupling, alpha (s). The measurement was carried out by fitting next-to-leading order perturbative predictions to measured angular correlations of 4-jet events together with multi-jet related variables. Our results, C-A = 3.02 +/- 0.25(stat.) +/- 0.49(syst.), CF = 1.34 +/- 0.13(stat.) +/- 0.22(syst.), alpha (s) (M-Z) = 0.120 +/- 0.011(stat.) +/- 0.020(syst,), provide a test of perturbative QCD in which the only assumptions are non-abelian gauge symmetry and standard hadronization models. The measurements are in agreement with SU(3) expectations for C-F and C-A and the world average of alpha (s)(M-Z).

AB - Using data from e(+)e(-) annihilation into hadrons, taken with the OPAL detector at LEP at the Z pole between 1991 and 1995, we performed a simultaneous measurement of the colour factors of the underlying gauge group of the strong interaction, C-F and C-A, and the strong coupling, alpha (s). The measurement was carried out by fitting next-to-leading order perturbative predictions to measured angular correlations of 4-jet events together with multi-jet related variables. Our results, C-A = 3.02 +/- 0.25(stat.) +/- 0.49(syst.), CF = 1.34 +/- 0.13(stat.) +/- 0.22(syst.), alpha (s) (M-Z) = 0.120 +/- 0.011(stat.) +/- 0.020(syst,), provide a test of perturbative QCD in which the only assumptions are non-abelian gauge symmetry and standard hadronization models. The measurements are in agreement with SU(3) expectations for C-F and C-A and the world average of alpha (s)(M-Z).

U2 - 10.1007/s100520100699

DO - 10.1007/s100520100699

M3 - Article

VL - 20

SP - 601

EP - 615

JO - Eur. Phys. J. C

JF - Eur. Phys. J. C

SN - 1434-6044

IS - 4

ER -