A Measurement Of The Qcd Color Factor Ratios C-A/C-F And T-F/C-F From Angular-Correlations In 4-Jet Events R Akers , Kj Anderson , S Arcelli , S Asai , A Astbury , D Axen , G Azuelos , Ah Ball , E Barberio , Rj Barlow , R Bartoldus , Jr Batley , G Beaudoin , A Beck , Ga Beck , J Becker , C Beeston , T Behnke , Kw Bell , G Bella , P Bentkowski , S Bentvelsen , P Berlich , S Bethke , O Biebel , Ij Bloodworth , P Bock , Hm Bosch , M Boutemeur , S Braibant , P Brightthomas , Rm Brown , A Buijs , Hj Burckhart , C Burgard , P Capiluppi , Rk Carnegie , Aa Carter , Jr Carter , Cy Chang , C Charlesworth , Dg Charlton , Sl Chu , Pel Clarke , Jc Clayton , Sg Clowes , I Cohen , Je Conboy , M Coupland , M Cuffiani , S Dado , C Dallapiccola , Gm Dallavalle , C Darling , S Dejong , H Deng , M Dittmar , Ms Dixit , Ede Silva , Je Duboscq , E Duchovni , G Duckeck , Ip Duerdoth , Uc Dunwoody , Pa Elcombe , Pg Estabrooks , E Etzion , Hg Evans , F Fabbri , B Fabbro , M Fanti , M Fierro , M Finckekeeler , Hm Fischer , P Fischer , R Folman , Dg Fong , M Foucher , H Fukui , A Furtjes , P Gagnon , A Gaidot , Jw Gary , J Gascon , Ni Geddes , C Geichgimbel , Sw Gensler , Fx Gentit , T Geralis , G Giacomelli , P Giacomelli , R Giacomelli , V Gibson , Wr Gibson , Jd Gillies , J Goldberg , Dm Gingrich , Mj Goodrick , W Gorn , C Grandi , P Grannis , E Gross , J Hagemann , Gg Hanson , M Hansroul , Ck Hargrove , J Hart , Pa Hart , M Hauschild , Cm Hawkes , E Heflin , Rj Hemingway , G Herten , Rd Heuer , Jc Hill , Sj Hillier , T Hilse , Da Hinshaw , Pr Hobson , D Hochman , A Hocker , Ej Horner , Ak Honma , R Howard , Re Hughesjones , R Humbert , P Igokemenes , H Ihssen , Dc Imrie , A Jawahery , Pw Jeffreys , H Jeremie , M Jimack , M Jones , Rwl Jones , P Jovanovic , C Jui , D Karlen , K Kawagoe , T Kawamoto , Rk Keeler , Rg Kellogg , Bw Kennedy , B King , J King , S Kluth , T Kobayashi , M Kobel , Ds Koetke , Tp Kokott , S Komamiya , R Kowalewski , P Krieger , J Vonkrogh , P Kyberd , Gd Lafferty , H Lafoux , R Lahmann , J Lauber , Jg Layter , P Leblanc , P Ledu , Am Lee , E Lefebvre , Mh Lehto , D Lellouch , C Leroy , J Letts , L Levinson , Z Li , F Liu , Sl Lloyd , Fk Loebinger , Gd Long , B Lorazo , Mj Losty , Xc Lou , J Ludwig , A Luig , M Mannelli , S Marcellini , C Markus , Aj Martin , Jp Martin , T Mashimo , P Mattig , U Maur , J Mckenna , Tj Mcmahon , Ai Mcnab , Jr Mcnutt , F Meijers , Fs Merritt , H Mes , A Michelini , Rp Middleton , G Mikenberg , J Mildenberger , Dj Miller , R Mir , W Mohr , C Moisan , A Montanari , T Mori , M Morii , U Muller , B Nellen , B Nijjhar , Sw Oneale , Fg Oakham , F Odorici , Ho Ogren , Cj Oram , Mj Oreglia , S Orito , Jp Pansart , Gn Patrick , Mj Pearce , P Pfister , Pd Phillips , Je Pilcher , J Pinfold , D Pitman , De Plane , P Poffenberger , B Poli , A Posthaus , Tw Pritchard , H Przysiezniak , Mw Redmond , Dl Rees , D Rigby , M Rison , Sa Robins , D Robinson , Jm Roney , E Ros , S Rossberg , Am Rossi , M Rosvick , P Routenburg , Y Rozen , K Runge , O Runolfsson , De Rust , M Sasaki , C Sbarra , Ad Schaile , O Schaile , F Scharf , P Scharffhansen , P Schenk , B Schmitt , H Vonderschmitt , M Schroder , Hc Schultzcoulon , P Schutz , M Schulz , C Schwick , J Schwiening , Wg Scott , M Settles , Tg Shears , Bc Shen , Ch Shepherdthemistocleous , P Sherwood , Gp Siroli , A Skillman , A Skuja , Am Smith , Tj Smith , Ga Snow , R Sobie , Rw Springer , M Sproston , A Stahl , C Stegmann , K Stephens , J Steuerer , B Stockhausen , R Strohmer , D Strom , P Szymanski , H Takeda , T Takeshita , S Tarem , M Tecchio , P Teixeriadias , N Tesch , Ma Thomson , S Towers , T Tsukamoto , Mf Turnerwatson , D Vandenplas , R Vankooten , G Vasseur , M Vincter , A Wagner , Dl Wagner , Cp Ward , Dr Ward , Jj Ward , Pm Watkins , At Watson , Nk Watson , P Weber , Ps Wells , N Wermes , B Wilkens , Gw Wilson , Ja Wilson , Vh Winterer , T Wlodek , G Wolf , S Wotton , Tr Wyatt , A Yeaman , G Yekutieli , M Yurko , W Zeuner , Gt Zorn ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS（1995）
摘要
From 1 105 045 hadronic Z(0) 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 yields C-A/C-F = 2.11 +/- 0.16(stat.) +/- 0.28(syst.) T-F/C-F = 0.40 +/- 0.11(stat.) +/- 0.14(syst.) for the ratios of colour factors, in agreement with SU(3) expectations of C-A/C-F = 9/4 and T-F/C-F = 3/8.
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