Measurement of theZ0 line shape parameters and the electroweak couplings of charged leptons

Measurement of theZ0 line shape parameters and the electroweak couplings of charged leptons
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带电轻子Z0线形参数和电弱耦合的测量

DOI:
10.1007/bf01560437
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发表时间:
1991
期刊:
影响因子:
--
通讯作者:
Opal Collaboration
Opal Collaboration
中科院分区:
--
文献类型:
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作者:
G. Alexander;J. Allison;P. Allport;K. Anderson;S. Arcelli;J. Armitage;P. Ashton;A. Astbury;D. Axen;G. Azuelos;G. Bahan;J. Baines;A. Ball;J. Banks;G. Barker;R. Barlow;J. Batley;G. Beaudoin;A. Beck;J. Becker;T. Behnke;K. Bell;G. Bella;S. Bethke;O. Biebel;U. Binder;I. Bloodworth;P. Bock;H. M. Bosch;S. Bougerolle;B. Brabson;H. Breuker;R. Brown;R. Brun;A. Buijs;H. Burckhart;P. Capiluppi;R. Carnegie;A. Carter;J. Carter;C. Y. Chang;D. Charlton;J. Chrin;P. Clarke;I. Cohen;W. Collins;J. Conboy;M. Cooper;M. Couch;M. Coupland;M. Cuffiani;S. Dado;G. Dallavalle;S. Jong;P. Debu;M. Deninno;A. Dieckmann;M. Dittmar;M. Dixit;E. Duchovni;G. Duckeck;I. Duerdoth;D. Dumas;G. Eckerlin;P. A. Elcombe;P. Estabrooks;E. Etzion;F. Fabbri;M. Fincke;H. Fischer;D. Fong;C. Fukunaga;A. Gaidot;O. Ganel;J. Gary;J. Gascón;R. McGowan;N. Geddes;C. Geich;S. Gensler;F. Gentit;G. Giacomelli;V. Gibson;W. Gibson;J. Gillies;J. Goldberg;M. Goodrick;W. Gorn;C. Grandi;E. Gross;J. Hagemann;G. Hanson;M. Hansroul;C. Hargrove;P. Harrison;J. Hart;P. M. Hattersley;M. Hauschild;C. Hawkes;E. Heflin;R. J. Hemingway;R. Heuer;J. Hill;S. Hillier;D. Hinshaw;C. Ho;J. Hobbs;P. Hobson;D. Hochman;B. Holl;R. Homer;S. Hou;C. Howarth;R. Hughes;R. Humbert;P. Igo;H. Ihssen;D. Imrie;L. Janissen;A. Jawahery;P. Jeffreys;H. Jérémie;M. Jimack;M. Jobes;R. Jones;P. Jovanović;D. Karlen;K. Kawagoe;T. Kawamoto;R. Keeler;R. Kellogg;B. Kennedy;C. Kleinwort;D. Klem;T. Kobayashi;T. Kokott;S. Komamiya;L. Köpke;R. Kowalewski;H. Kreutzmann;J. Krogh;J. Kroll;M. Kuwano;P. Kyberd;G. Lafferty;F. Lamarche;W. J. Larson;J. Layter;P. Dû;P. Leblanc;A. Lee;M. Lehto;D. Lellouch;P. Lennert;C. Leroy;L. Lessard;S. Levegrün;L. Levinson;S. Lloyd;F. Loebinger;J. Lorah;B. Lorazo;M. Losty;X. Lou;J. Ludwig;M. Mannelli;S. Marcellini;G. Maringer;A. Martin;J. Martin;T. Mashimo;P. Mättig;U. Maur;T. Mcmahon;J. Mcnutt;F. Meijers;D. Menszner;F. Merritt;H. Mes;A. Michelini;R. Middleton;G. Mikenberg;J. Mildenberger;D. Miller;C. Milstène;R. Mir;W. Mohr;C. Moisan;A. Montanari;Takashi Mori;M. W. Moss;T. Mouthuy;P. Murphy;B. Nellen;H. Nguyen;M. Nozaki;S. O'neale;B. O'Neill;F. G. Oakham;F. Odorici;M. Ogg;H. Ogren;H. Oh;C. Oram;M. Oreglia;S. Orito;J. Pansart;B. Panzer;P. Paschievici;G. Patrick;S. Pawley;P. Pfister;J. Pilcher;J. Pinfold;D. Plane;P. Poffenberger;B. Poli;A. Pouladdej;E. Prebys;T. Pritchard;H. Przysiezniak;G. Quast;M. W. Redmond;D. Rees;K. Riles;S. Robins;D. Robinson;A. Rollnik;J. Roney;S. Rossberg;A. Rossi;P. Routenburg;K. Runge;O. Rúnolfsson;D. Rust;S. Sanghera;M. Sasaki;A. Schaile;O. Schaile;W. Schappert;P. Scharff;P. Schenk;H. Schmitt;S. Schreiber;J. Schwarz;W. Scott;M. Settles;B. Shen;P. Sherwood;R. Shypit;A. Simon;P. Singh;G. Siroli;A. Skuja;A. Smith;T. Smith;G. Snow;R. Sobie;R. Springer;M. Sproston;K. Stephens;H. E. Stier;D. Strom;H. Takeda;T. Takeshita;P. Taras;S. Tarem;P. Teixeira;N. Thackray;T. Tsukamoto;M. Turner;G. Tysarczyk;D. Plas;R. Kooten;G. Dalen;G. Vasseur;C. Virtue;A. Wagner;C. Wahl;J. Walker;C. Ward;D. Ward;P. Watkins;A. Watson;N. Watson;M. Weber;S. Weisz;P. Wells;N. Wermes;M. Weymann;M. Whalley;G. Wilson;J. Wilson;I. Wingerter;V. Winterer;N. C. Wood;S. Wotton;T. Wyatt;R. Yaari;Y. Yangh;G. Yekutieli;Igor Zacharov;W. Zeuner;G. Zorn;Opal Collaboration

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We report on an improved measurement of the mass of theZ0boson, its total width and its partial decay widths into hadrons and leptons, as well as the effective axial vector and vector couplings to charged leptons. These measurements are based on a data set of approximately 160 000 hadronicZ0decays and 18 000 decays into electrons, muons and taus, recorded by the OPAL experiment at centre of mass energies near the mass of theZ0. The total width and the partial widths to visible final states, derived from the measured cross sections, are used to extract the invisible width. The effective couplings of theZ0to charged leptons are studied using measurements of the lepton pair cross sections and forward-backward asymmetries at the different centre of mass energy points of theZ0scan. The implications of our results in the context of the Standard Model are discussed.