QCD studies with e+e− annihilation data at 130 and 136 GeV

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ID: 269711
1996
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Abstract
We have studied hadronic events produced at LEP at centre-of-mass energies of 130 and 136 GeV. Distributions of event shape observables, jet rates, momentum spectra and multiplicities are presented and compared to the predictions of several Monte Carlo models and analytic QCD calculations. From fits of event shape and jet rate distributions to\({\mathcal{O}}(\alpha _s^2 ) + NLLA\) QCD calculations, we determineα s (133 GeV)=0.110±0.005(stat.)±0.009(syst.). We measure the mean charged particle multiplicity 〈n ch〉=23.40±0.45(stat.) ±0.47(syst.) and the position ζ0 of the peak in the ζp = ln(1/x p ) distribution ζ0=3.94±0.05(stat.)±0.11(syst.). These results are compared to lower energy data and to analytic QCD or Monte Carlo predictions for their energy evolution.
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Authors G. Alexander,OPAL Collaboration,J. Allison,N. Altekamp,K. Ametewee,K. J. Anderson,S. Anderson,S. Arcelli,S. Asai,D. Axen,Georges Azuelos,A. H. Ball,E. Barberio,Roger Barlow,R. Bartoldus,J. R. Batley,G. Beaudoin,J. Bechtluft,C. Beeston,T. Behnke,A. N. Bell,K. W. Bell,Gideon Bella,S. Bentvelsen,P. Berlich,S. Bethke,O. Biebel,V. Blobel,I. J. Bloodworth,J. E. Bloomer,P. Bock,H. M. Bosch,M. Boutemeur,B. T. Bouwens,S. Braibant,R. M. Brown,H. J. Burckhart,C. Burgard,R. Bürgin,P. Capiluppi,R. K. Carnegie,A. A. Carter,J. R. Carter,C. Y. Chang,C. Charlesworth,D. G. Charlton,D. Chrisman,S. L. Chu,P. E. L. Clarke,I. Cohen,J. E. Conboy,O. C. Cooke,M. Cuffiani,S. Dado,C. Dallapiccola,G. M. Dallavalle,Sijbrand de Jong,L. A. Del Pozo,K. Desch,M. S. Dixit,E. Do Couto E Silva,Mathieu Doucet,E. Duchovni,G. Duckeck,I. P. Duerdoth,J. E. G. Edwards,P. G. Estabrooks,H. G. Evans,M. Evans,F. Fabbri,P. Fath,F. Fiedler,M. Fierro,H. M. Fischer,Ron Folman,D. G. Fong,M. Foucher,H. Fukui,A. Fürtjes,P. Gagnon,A. Gaidot,J. W. Gary,J. Gascon,S. M. Gascon-Shotkin,N. I. Geddes,C. Geich-Gimbel,F. X. Gentit,T. Geralis,Paolo Giacomelli,V. Gibson,W. R. Gibson,D. M. Gingrich,J. Goldberg,M. J. Goodrick,W. Gorn,Claudio Grandi,E. Gross,M. Gruwé,C. Hajdu,G. G. Hanson,M. Hansroul,M. Hapke,C. K. Hargrove,P. A. Hart,C. Hartmann,Michael Hauschild,C. M. Hawkes,R. Hawkings,R. J. Hemingway,G. Herten,R. D. Heuer,M. D. Hildreth,J. C. Hill,S. J. Hillier,T. Hilse,J. Hoare,Peter Hobson,R. J. Homer,A. K. Honma,D. Horváth,R. Howard,Roger Jones,D. E. Hutchcroft,P. Igo-Kemenes,D. C. Imrie,M. R. Ingram,A. Jawahery,P. W. Jeffreys,H. Jeremie,M. Jimack,A. Joly,C. R. Jones,G. Jones,M. Jones,U. Jost,P. Jovanovic,T. R. Junk,Dean Karlen,Kiyotomo Kawagoe,T. Kawamoto,Richard Keeler,R. G. Kellogg,B. W. Kennedy,B. J. King,Julie Kirk,S. Kluth,T. Kobayashi,M. Kobel,D. S. Koetke,T. P. Kokott,S. Komamiya,Robert Kowalewski,T. Kress,P. Krieger,J. Von Krogh,Paul Kyberd,George Lafferty,H. Lafoux,R. Lahmann,W. P. Lai,D. Lanske,J. Lauber,S. R. Lautenschlager,J. G. Layter,D. Lazic,A. M. Lee,E. Lefebvre,D. Lellouch,J. Letts,L. Levinson,C. Lewis,Stephen Lloyd,F. K. Loebinger,G. D. Long,M. J. Losty,J. Ludwig,A. Luig,A. Malik,M. Mannelli,S. Marcellini,C. Markus,A. J. Martin,J. P. Martin,G. Martinez,T. Mashimo,W. Matthews,P. Mättig,W. J. McDonald,J. McKenna,E. A. Mckigney,T. J. McMahon,A. I. McNab,Robert McPherson,F. Meijers,S. Menke,F. S. Merritt,H. Mes,J. Meyer,A. Michelini,G. Mikenberg,D. J. Miller,R. Mir,W. Mohr,A. Montanari,T. Mori,Masahiro Morii,U. Müller,H. A. Neal,B. Nellen,B. Nijjhar,R. Nisius,S. W. O’Neale,F. G. Oakham,F. Odorici,H. O. Ogren,M. J. Oreglia,S. Orito,J. Pálinkás,J. P. Pansart,G. Pásztor,J. R. Pater,G. N. Patrick,M. J. Pearce,S. Petzold,P. Pfeifenschneider,J. E. Pilcher,J. Pinfold,D. E. Plane,P. Poffenberger,B. Poli,A. Posthaus,H. Przysiezniak,D. L. Rees,D. Rigby,S. A. Robins,N. Rodning,J. M. Roney,A. Rooke,E. Ros,A. M. Rossi,M. Rosvick,P. Routenburg,Y. Rozen,K. Runge,O. Runolfsson,U. Ruppel,D. R. Rust,R. Rylko,E. K. G. Sarkisyan,M. Sasaki,C. Sbarra,A. D. Schaile,O. Schaile,F. Scharf,P. Scharff-Hansen,P. Schenk,Stefan Schmitt,M. Schröder,Hans-Christian Schultz-Coulon,M. Schulz,P. Schütz,W. G. Scott,Tara Shears,B. C. Shen,C. H. Shepherd-Themistocleous,P. Sherwood,G. P. Siroli,A. Sittler,A. Skillman,A. Skuja,A. M. Smith,Tim Smith,G. A. Snow,R. Sobie,Stefan Soldner-Rembold,R. W. Springer,M. Sproston,Achim Stahl,M. Starks,M. Steiert,K. Stephens,J. Steuerer,B. Stockhausen,D. Strom,F. Strumia,P. Szymanski,R. Tafirout,S. D. Talbot,S. Tanaka,P. Taras,S. Tarem,M. Tecchio,M. Thiergen,M. A. Thomson,E. Von Törne,S. Towers,M. Tscheulin,T. Tsukamoto,E. Tsur,A. S. Turcot,M. F. Turner-Watson,P. Utzat,R. Van Kooten,G. Vasseur,M. Verzocchi,P. Vikas,Manuella Vincter,E. H. Vokurka,F. Wäckerle,A. Wagner,C. P. Ward,D. R. Ward,J. J. Ward,Peter Watkins,A. T. Watson,Nigel Watson,P. Weber,P. S. Wells,N. Wermes,J. S. White,B. Wilkens,Graham Wilson,J. A. Wilson,T. Wlodek,G. Wolf,S. Wotton,T. R. Wyatt,S. Yamashita,G. Yekutieli,V. Zacek;G. Alexander;OPAL Collaboration;J. Allison;N. Altekamp;K. Ametewee;K. J. Anderson;S. Anderson;S. Arcelli;S. Asai;D. Axen;Georges Azuelos;A. H. Ball;E. Barberio;Roger Barlow;R. Bartoldus;J. R. Batley;G. Beaudoin;J. Bechtluft;C. Beeston;T. Behnke;A. N. Bell;K. W. Bell;Gideon Bella;S. Bentvelsen;P. Berlich;S. Bethke;O. Biebel;V. Blobel;I. J. Bloodworth;J. E. Bloomer;P. Bock;H. M. Bosch;M. Boutemeur;B. T. Bouwens;S. Braibant;R. M. Brown;H. J. Burckhart;C. Burgard;R. Bürgin;P. Capiluppi;R. K. Carnegie;A. A. Carter;J. R. Carter;C. Y. Chang;C. Charlesworth;D. G. Charlton;D. Chrisman;S. L. Chu;P. E. L. Clarke;I. Cohen;J. E. Conboy;O. C. Cooke;M. Cuffiani;S. Dado;C. Dallapiccola;G. M. Dallavalle;Sijbrand de Jong;L. A. Del Pozo;K. Desch;M. S. Dixit;E. Do Couto E Silva;Mathieu Doucet;E. Duchovni;G. Duckeck;I. P. Duerdoth;J. E. G. Edwards;P. G. Estabrooks;H. G. Evans;M. Evans;F. Fabbri;P. Fath;F. Fiedler;M. Fierro;H. M. Fischer;Ron Folman;D. G. Fong;M. Foucher;H. Fukui;A. Fürtjes;P. Gagnon;A. Gaidot;J. W. Gary;J. Gascon;S. M. Gascon-Shotkin;N. I. Geddes;C. Geich-Gimbel;F. X. Gentit;T. Geralis;Paolo Giacomelli;V. Gibson;W. R. Gibson;D. M. Gingrich;J. Goldberg;M. J. Goodrick;W. Gorn;Claudio Grandi;E. Gross;M. Gruwé;C. Hajdu;G. G. Hanson;M. Hansroul;M. Hapke;C. K. Hargrove;P. A. Hart;C. Hartmann;Michael Hauschild;C. M. Hawkes;R. Hawkings;R. J. Hemingway;G. Herten;R. D. Heuer;M. D. Hildreth;J. C. Hill;S. J. Hillier;T. Hilse;J. Hoare;Peter Hobson;R. J. Homer;A. K. Honma;D. Horváth;R. Howard;Roger Jones;D. E. Hutchcroft;P. Igo-Kemenes;D. C. Imrie;M. R. Ingram;A. Jawahery;P. W. Jeffreys;H. Jeremie;M. Jimack;A. Joly;C. R. Jones;G. Jones;M. Jones;U. Jost;P. Jovanovic;T. R. Junk;Dean Karlen;Kiyotomo Kawagoe;T. Kawamoto;Richard Keeler;R. G. Kellogg;B. W. Kennedy;B. J. King;Julie Kirk;S. Kluth;T. Kobayashi;M. Kobel;D. S. Koetke;T. P. Kokott;S. Komamiya;Robert Kowalewski;T. Kress;P. Krieger;J. Von Krogh;Paul Kyberd;George Lafferty;H. Lafoux;R. Lahmann;W. P. Lai;D. Lanske;J. Lauber;S. R. Lautenschlager;J. G. Layter;D. Lazic;A. M. Lee;E. Lefebvre;D. Lellouch;J. Letts;L. Levinson;C. Lewis;Stephen Lloyd;F. K. Loebinger;G. D. Long;M. J. Losty;J. Ludwig;A. Luig;A. Malik;M. Mannelli;S. Marcellini;C. Markus;A. J. Martin;J. P. Martin;G. Martinez;T. Mashimo;W. Matthews;P. Mättig;W. J. McDonald;J. McKenna;E. A. Mckigney;T. J. McMahon;A. I. McNab;Robert McPherson;F. Meijers;S. Menke;F. S. Merritt;H. Mes;J. Meyer;A. Michelini;G. Mikenberg;D. J. Miller;R. Mir;W. Mohr;A. Montanari;T. Mori;Masahiro Morii;U. Müller;H. A. Neal;B. Nellen;B. Nijjhar;R. Nisius;S. W. O’Neale;F. G. Oakham;F. Odorici;H. O. Ogren;M. J. Oreglia;S. Orito;J. Pálinkás;J. P. Pansart;G. Pásztor;J. R. Pater;G. N. Patrick;M. J. Pearce;S. Petzold;P. Pfeifenschneider;J. E. Pilcher;J. Pinfold;D. E. Plane;P. Poffenberger;B. Poli;A. Posthaus;H. Przysiezniak;D. L. Rees;D. Rigby;S. A. Robins;N. Rodning;J. M. Roney;A. Rooke;E. Ros;A. M. Rossi;M. Rosvick;P. Routenburg;Y. Rozen;K. Runge;O. Runolfsson;U. Ruppel;D. R. Rust;R. Rylko;E. K. G. Sarkisyan;M. Sasaki;C. Sbarra;A. D. Schaile;O. Schaile;F. Scharf;P. Scharff-Hansen;P. Schenk;Stefan Schmitt;M. Schröder;Hans-Christian Schultz-Coulon;M. Schulz;P. Schütz;W. G. Scott;Tara Shears;B. C. Shen;C. H. Shepherd-Themistocleous;P. Sherwood;G. P. Siroli;A. Sittler;A. Skillman;A. Skuja;A. M. Smith;Tim Smith;G. A. Snow;R. Sobie;Stefan Soldner-Rembold;R. W. Springer;M. Sproston;Achim Stahl;M. Starks;M. Steiert;K. Stephens;J. Steuerer;B. Stockhausen;D. Strom;F. Strumia;P. Szymanski;R. Tafirout;S. D. Talbot;S. Tanaka;P. Taras;S. Tarem;M. Tecchio;M. Thiergen;M. A. Thomson;E. Von Törne;S. Towers;M. Tscheulin;T. Tsukamoto;E. Tsur;A. S. Turcot;M. F. Turner-Watson;P. Utzat;R. Van Kooten;G. Vasseur;M. Verzocchi;P. Vikas;Manuella Vincter;E. H. Vokurka;F. Wäckerle;A. Wagner;C. P. Ward;D. R. Ward;J. J. Ward;Peter Watkins;A. T. Watson;Nigel Watson;P. Weber;P. S. Wells;N. Wermes;J. S. White;B. Wilkens;Graham Wilson;J. A. Wilson;T. Wlodek;G. Wolf;S. Wotton;T. R. Wyatt;S. Yamashita;G. Yekutieli;V. Zacek;
Journal the european physical journal c
Year 1996
DOI
10.1007/s002880050237
URL
https://sciprofiles.com/publication/view/55e177d04c4dc2b3d9733a44b20b9631
Keywords
systematic uncertainty fragmentation function event shape monte carlo model initial state radiation

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