Study Of Orientation Of 3-Jet Events In Z(0) Hadronic Decays Using The Delphi Detector

P Abreu,W Kucewicz,J Wikne,J J Lozano, B Jeanmarie, P Juillot,U Mjornmark,C Bosio, D Crennell,G Damgaard, W Ruckstuhl, A Augustinus,J Zuniga,E K Johansson,A Zalewska,Yu Belokopytov, D Treille,G Skjevling,E N Gazis, P Bogolyubov, H Stack, G Vegni, A Ouraou, K Hultqvist,J Buytaert,Stefano Ragazzi,Jan Timmermans, D Radojicic,M Vollmer,P Folegati,A Maltezos,N Demaria, R Zitoun, L Pape, N Redaelli,G Smadja,S Marti,J Bjarne,B Nijjhar, G D Alekseev,J Dolbeau,F Naraghi,P Roudeau, G Valenti,N I Zimin,G Grosdidier,J M Benlloch, S O Holmgren,G Kantardjian, J Salt, P Herquet,G Rinaudo,C Stanescu,J Lemonne,G R Smith,P Chliapnikov,W Mitaroff,M Sessa,J Ridky,H Forsbach, G Hamel De Monchenault, B De Lotto,H Saarikko,M J Bates,B Koene,W De Boer,W S C Williams,S Katsanevas,S Braibant,D Benedic, K H Becks,H Borner,T Tabarelli,R Strub,M L Turluer,R Dzhelyadin,G Tristram,E Zevgolatakos, M Matveev,P Privitera, G Mitselmakher,M Mccubbin,J Guy,E N Tsyganov,B Korzen,Ph Gavillet,M Szczekowski,N Brummer,J Cuevas Maestro,Javier J Maquilon Sanchez,A Letessierselvon,W Venus, P Siegrist,U Rossi, C Caso, D Fassouliotis,R Mckay, Enrique Garcia Sanchez,D Isenhower,R Sekulin,F J Harris, R J Apsimon, P Ronchese,C Beeston,P Negri,U Trevisan,P S Iversen,T B Skaali,M Battaglia,G Ekspong, A N Sisakian,P Billoir,J P Laugier,M Zito,C Garcia,A G Frodesen,P David,A M Wetherell,J H Wickens, M Pegoraro, W Adam, K Doroba,P Antilogus,Enrico Graziani, M Voutilainen, A Romero,M Bonesini,W H Range, L Di Ciaccio, K Fransson,F Verbeure, P Kluit,F Fuldaquenzer,C Ronnqvist,I Hietanen,F Hahn,E C Katsoufis,Klaus Monig,B A Khomenko,E Higon,F Pierre,M Chapkin, M Margoni,S Haider, M S Bilenky, J Marco, Mark Ian Richardson,T Rovelli,M Caccia,L Jonsson, T Adye, W T Meyer, F Couchot,P Zalewski,M Michelotto, A Cattai,B Lorstad, T Todorov,B Uberschar,N J Kjaer, R Fruhwirth,M A Lopez Aguera,G Stavropoulos,M Koratzinos,B Bouquet,Y Sacquin,J C Marin, A L Read,L S Vertogradov,C De La Vaissiere,J Kesteman,C Lambropoulos,E Lillethun, R Orava, M Mazzucato, L Lyons, F Djama, B Asman, T Camporesi,R Zukanovich Funchal,M Los,M Dam,R Contri, P Ioannou,H J Hilke,M Dracos, L G Tkachev,V G Timofeev,S Tzamarias,U Krunermarquis,A Passeri,Jamal Eddine Derkaoui, V Nikolaenko,S Dagoret,H Herr,G Cosme,H De Boeck,F Stichelbaut, R Gokieli,G Leder, R Brenner,S Blyth, L Cerrito,J M Brunet,G W Van Apeldoorn,W D Apel,K Belous,E Fokitis,G Wormser,S Volponi,W Dulinski,Fernando Adami,M Fernandez Alonso, M Sannino,I Roncagliolo,E Vallazza,F Ledroit,F Matorras,G Polok,M Szeptycka,V Lepeltier,L Tortora, D Bloch,H Palka,P Renton,D Yu Bardin,Tord Ekelof, Piet Van Dam,A J Camacho Rozas,Elmar Lieb,P Allen,M Boratav,P Giacomelli, M Dris,T Kreuzberger,V Ruhlmann, T Tuuva, P Morettini, F Simonetto, A Lounis,A Campion,H Schneider, J N Jackson,R Turchetta,L Vibert,P Szymanski,Th D Papadopoulou,P Charpentier,R Moller,K W Glitza,N Yamdagni, G Barbiellini,F Waldner,P Beltran,P Frenkiel, J A Varela, Bernard David Hyams,M Regler,U Naukorzen,M Crozon,Fernando D Bianchi,P Poropat,H Dijkstra, A Tsirou, W Bonivento,Torsten Akesson, V Canale,M Donszelmann,W Bartl,A Ostankov,K Kurvinen,O Barring,P Yepes,C Matteuzzi,A M Segar,M Gorski,A Grant,Philip Bambade,G Matthiae,J E Hooper, M Houlden,M Winter,T A Filippas, C Troncon, P Checchia, A Baroncelli,A S Vodopianov, W Trischuk,Barry King,D C Fries,M Davenport,C Lacasta, M Pernicka,E Castelli,G Myatt,R Lucock,P S L Booth,Jeremy Scott Werner, A Stocchi,J H Bibby, W J Murray, T Buran, S Simonetti,R Mcnulty,Josef Strauss,K Hamacher,L Ventura,J Maillard,P Borgeaud,M Bozzo, E Daubie,C Walck,M Begalli,G Sette, P N Ratoff, O Botner,H Muller,M Pimenta,J H Kohne,I Herbst, E Vlasov, C Kourkoumelis,A Tilquin,G Wilkinson,P Astier, A De Angelis,L Carroll,G Darbo,E I Rosenberg,W Klempt,B Franek,D J Holthuizen,Walter Van Doninck,J P Gerber,R Pain,J J Gomez Y Cadenas,M Hahn,G E Theodosiou,J M Gago,S Uberschar, P D Dauncey,N Van Eijndhoven,F Cao,V Gracco,W Krupinski, G A Chelkov,N Crosland, F Scuri, T 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Vilanova,C Vander Velde,P Beilliere,C Bricman,O Pingot,M Bonapart,M Jonker,A Hakansson,N De Groot, B S Nielsen, S Schael,J P Engel,A Ferrer, Z Hajduk,N N Khovansky, A Hallgren, Javier Velasco,L K Resvanis,M V Castillo Gimenez,F Kapusta, P Jarry,D Husson,J J Hernandez,O Ullaland,D Delikaris,H Furstenau, A Lipniacka,B Grossetete,G Galeazzi, V Vrba,F Grard,M Gros, D Bertrand, U Amaldi,P O Hulth,D Wormald,A Klovning,S J Alvsvaag,F Richard,A M Zaitsev,K Furnival, Hansjorg Klein,A G Olshevski, A Pullia,M R Monge,S Squarcia, H Wahlen,I A Tyapkin, A Korytov,M T Trainor, J Hrubec,S Almehed,R Cirio,B Heck,H Foeth,A Firestone, V V Perevozchikov,T Hofmokl,S D Hodgson,H B Crawley,E Dahljensen, Jeaneric Campagne, M Tyndel, G Zumerle,J W Lamsa, P Baillon, E Spiriti, M E Pol,D Z Toet,P F Honore,A Elliot Peisert,K Rybicki, S Maltezos,G P Gopal, P Delpierre,V Lapin,H Burmeister,P Lutz,G Voulgaris, M Lokajicek, G A Klyuchnikov

PHYSICS LETTERS B（1992）

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Abstract

The study of the orientation of three-jet events from e+ e- --> Z0 --> multi-hadrons is presented, in particular the polar angle distributions of the thrust axis and of the normal to the three-jet plane, and the azimuthal correlations between the hadron plane and the one defined by the beam and thrust axes. The data are compared with results at lower energy and with QCD predictions. Good agreement with QCD predictions is observed. The scalar gluon theory is excluded by the data.

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particle physics

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