We report on properties of hadronic events from e+e− annihilation observed by the ALEPH detector at the large Electron Positron Collider at CERN. The center-of-mass energy was View the MathML source. Measured distributions of the global event-shape variables sphericity, aplanarity, thrust and minor value, and of the inclusive variables xp, p⊥in, p⊥out and y are presented. We measure a mean charged multiplicity in hadronic events of 〈Nch〉=21.3±0.1 (statistical)±0.6 (systematic). The data are in good agreement with QCD-based models which use the leading-logarithm approximation, and are less well described by a model using O(αs2) QCD.

Properties of hadronic events in e+e− annihilation at / D. Decamp;B. Deschizeaux;J.-P. Lees;M.-N. Minard;J.M. Crespo;M. Delfino;E. Fernandez;M. Martinez;R. Miquel;M.L. Mir;S. Orteu;A. Pacheco;J.A. Perlas;E. Tubau;M.G. Catanesi;M. De Palma;A. Farilla;G. Iaselli;G. Maggi;A. Mastrogiacomo;S. Natali;S. Nuzzo;A. Ranieri;G. Raso;F. Romano;F. Ruggieri;G. Selvaggi;L. Silvestris;P. Tempesta;G. Zito;Y. Chen;H. Hu;D. Huang;J. Lin;T. Ruan;T. Wang;W. Wu;Y. Xie;D. Xu;R. Xu;J. Zhang;W. Zhao;H. Albrecht;F. Bird;E. Blucher;T. Charity;H. Drevermann;Ll. Garrido;C. Grab;R. Hagelberg;S. Haywood;B. Jost;M. Kasemann;G. Kellner;J. Knobloch;A. Lacourt;I. Lehraus;T. Lohse;D. Lüke;A. Marchioro;P. Mato;J. May;V. Mertens;A. Minten;A. Miotto;P. Palazzi;M. Pepe-Altarelli;F. Ranjard;J. Richstein;A. Roth;J. Rothberg;H. Rotscheidt;W. Von Rüden;R. St.Denis;D. Schlatter;M. Takashima;M. Talby;H. Taureg;W. Tejessy;H. Wachsmuth;S. Wheeler;W. Wiedenmann;W. Witzeling;J. Wotschack;Z. Ajaltouni;M. Bardadin-Otwinowska;A. Falvard;P. Gay;P. Henrard;J. Jousset;B. Michel;J.-C. Montret;D. Pallin;P. Perret;J. Prat;J. Proriol;F. Prulhière;H. Bertelsen;F. Hansen;J.D. Hansen;J.R. Hansen;P.H. Hansen;A. Lindahl;B. Madsen;R. Møllerud;B.S. Nilsson;G. Petersen;E. Simopoulou;A. Vayaki;J. Badier;D. Bernard;A. Blondel;G. Bonneaud;J. Bourotte;F. Braems;J.C. Brient;M.A. Ciocci;R. Guirlet;P. Miné;A. Rougé;H. Videau;I. Videau;D. Zwierski;D.J. Candlin;A. Conti;G. Parrini;M. Corden;C. Georgiopoulos;J.H. Goldman;M. Ikeda;J. Lannutti;D. Levinthal;M. Mermikides;L. Sawyer;A. Antonelli;R. Baldini;G. Bencivenni;G. Bologna;F. Bossi;P. Campana;G. Capon;V. Chiarella;G. de Ninno;B. D'Ettorre-Piazzoli;G. Felici;P. Laurelli;G. Mannocchi;F. Murtas;G.P. Murtas;G. Nicoletti;P. Picchi;P. Zografou;B. Altoon;O. Boyle;A.J. Flavell;A.W. Halley;I. Ten Have;J.L. Hearns;I.S. Hughes;J.G. Lynch;D.J. Martin;R. O'Neill;C. Raine;J.M. Scarr;K. Smith;A.S. Thompson;B. Brandl;O. Braun;R. Geiges;C. Geweniger;P. Hanke;V. Hepp;E.E. Kluge;Y. Maumary;M. Panter;A. Putzer;B. Rensch;A. Stahl;K. Tittel;M. Wunsch;G.J. Barber;A.T. Belk;R. Beuselinck;D.M. Binnie;W. Cameron;M. Cattaneo;P.J. Dornan;S. Dugeay;R.W. Forty;D.N. Gentry;J.F. Hassard;D.G. Miller;D.R. Price;J.K. Sedgbeer;G. Taylor;I.R. Tomalin;P. Girtler;D. Kuhn;G. Rudolph;T.J. Brodbeck;C.K. Bowdery;A.J. Finch;F. Foster;G. Hughes;N.R. Keemer;M. Nuttall;B.S. Rowlingson;T. Sloan;S.W. Snow;T. Barczewski;L.A.T. Bauerdick;K. Kleinknecht;D. Pollmann;B. Renk;S. Roehn;H.-G. Sander;M. Schmelling;F. Steeg;J.-P. Albanese;J.-J. Aubert;C. Benchouk;A. Bonissent;F. Etienne;R. Nacasch;P. Payre;B. Pietrzyk;Z. Qian;W. Blum;P. Cattaneo;M. Comin;G. Cowan;B. Dehning;H. Dietl;M. Fernandez-Bosman;D. Hauff;A. Jahn;E. Lange;G. Lütjens;G. Lutz;W. Männer;H.-G. Moser;Y. Pan;R. Richter;A.S. Schwarz;R. Settles;U. Stiegler;U. Stierlin;G. Stimpfl;J. Thomas;G. Waltermann;G. De Bouard;J. Boucrot;O. Callot;A. Cordier;M. Davier;G. Ganis;J.-F. Grivaz;Ph. Heusse;P. Janot;V. Journé;D.W. Kim;J. Lefrançois;D. Lloyd-Owen;A.-M. Lutz;P. Marotte;J.-J. Veillet;S.R. Amendolia;G. Bagliesi;G. Batignani;L. Bosisio;U. Bottigli;C. Bradaschia;I. Ferrante;F. Fidecaro;L. Foà;E. Focardi;F. Forti;A. Giassi;M.A. Giorgi;F. Ligabue;A. Lusiani;E.B. Mannelli;P.S. Marrocchesi;A. Messineo;F. Palla;G. Sanguinetti;S. Scapellato;J. Steinberger;R. Tenchini;G. Tonelli;G. Triggiani;J.M. Carter;B.J. Green;M.G. Green;A.K. McKemey;P.V. March;T. Medcalf;M.R. Saich;J.A. Strong;R.M. Thomas;T. Wildish;D.R. Botterill;R.W. Clifft;T.R. Edgecock;M. Edwards;S.M. Fisher;J. Harvey;D.L. Hill;T.J. Jones;M. Morrissey;P.r. Norton;D.P. Salmon;J.C. Thompson;B. Bloch-Devaux;P. Colas;C. Klopfenstein;E. Lançon;E. Locci;S. Loucatos;L. Mirabito;E. Monnier;P. Perez;F. Perrier;J. Rander;J.-F. Renardy;A. Roussarie;J.-P. Schuller;J.G. Ashman;C.N. Booth;F. Combley;M. Dinsdale;J. Martin;D. Parker;L.F. Thompson;S. Brandt;H. Burkhardt;C. Grupen;H. Meinhard;E. Neugebauer;U. Schäfer;H. Seywerd;K. Stupperich;B. Gobbo;F. Liello;E. Milotti;F. Ragusa;L. Roland;L. Bellantoni;J.F. Boudreau;D. Cinabro;J.S. Conway;D.F. Cowen;Z. Feng;J.L. Harton;J. Hilgart;R.C. Jared;R.P. Johnson;B.W. Leclaire;Y.B. Pan;T. Parker;J.R. Pater;Y. Saadi;V. Sharma;J.A. Wear;F.V. Weber; Sau Lan Wu;S.T. Xue;G. Zobernig. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - ELETTRONICO. - 234:(1990), pp. 209-218. [10.1016/0370-2693(90)92030-M]

Properties of hadronic events in e+e− annihilation at

FOCARDI, ETTORE;
1990

Abstract

We report on properties of hadronic events from e+e− annihilation observed by the ALEPH detector at the large Electron Positron Collider at CERN. The center-of-mass energy was View the MathML source. Measured distributions of the global event-shape variables sphericity, aplanarity, thrust and minor value, and of the inclusive variables xp, p⊥in, p⊥out and y are presented. We measure a mean charged multiplicity in hadronic events of 〈Nch〉=21.3±0.1 (statistical)±0.6 (systematic). The data are in good agreement with QCD-based models which use the leading-logarithm approximation, and are less well described by a model using O(αs2) QCD.
1990
234
209
218
D. Decamp;B. Deschizeaux;J.-P. Lees;M.-N. Minard;J.M. Crespo;M. Delfino;E. Fernandez;M. Martinez;R. Miquel;M.L. Mir;S. Orteu;A. Pacheco;J.A. Perlas;E. Tubau;M.G. Catanesi;M. De Palma;A. Farilla;G. Iaselli;G. Maggi;A. Mastrogiacomo;S. Natali;S. Nuzzo;A. Ranieri;G. Raso;F. Romano;F. Ruggieri;G. Selvaggi;L. Silvestris;P. Tempesta;G. Zito;Y. Chen;H. Hu;D. Huang;J. Lin;T. Ruan;T. Wang;W. Wu;Y. Xie;D. Xu;R. Xu;J. Zhang;W. Zhao;H. Albrecht;F. Bird;E. Blucher;T. Charity;H. Drevermann;Ll. Garrido;C. Grab;R. Hagelberg;S. Haywood;B. Jost;M. Kasemann;G. Kellner;J. Knobloch;A. Lacourt;I. Lehraus;T. Lohse;D. Lüke;A. Marchioro;P. Mato;J. May;V. Mertens;A. Minten;A. Miotto;P. Palazzi;M. Pepe-Altarelli;F. Ranjard;J. Richstein;A. Roth;J. Rothberg;H. Rotscheidt;W. Von Rüden;R. St.Denis;D. Schlatter;M. Takashima;M. Talby;H. Taureg;W. Tejessy;H. Wachsmuth;S. Wheeler;W. Wiedenmann;W. Witzeling;J. Wotschack;Z. Ajaltouni;M. Bardadin-Otwinowska;A. Falvard;P. Gay;P. Henrard;J. Jousset;B. Michel;J.-C. Montret;D. Pallin;P. Perret;J. Prat;J. Proriol;F. Prulhière;H. Bertelsen;F. Hansen;J.D. Hansen;J.R. Hansen;P.H. Hansen;A. Lindahl;B. Madsen;R. Møllerud;B.S. Nilsson;G. Petersen;E. Simopoulou;A. Vayaki;J. Badier;D. Bernard;A. Blondel;G. Bonneaud;J. Bourotte;F. Braems;J.C. Brient;M.A. Ciocci;R. Guirlet;P. Miné;A. Rougé;H. Videau;I. Videau;D. Zwierski;D.J. Candlin;A. Conti;G. Parrini;M. Corden;C. Georgiopoulos;J.H. Goldman;M. Ikeda;J. Lannutti;D. Levinthal;M. Mermikides;L. Sawyer;A. Antonelli;R. Baldini;G. Bencivenni;G. Bologna;F. Bossi;P. Campana;G. Capon;V. Chiarella;G. de Ninno;B. D'Ettorre-Piazzoli;G. Felici;P. Laurelli;G. Mannocchi;F. Murtas;G.P. Murtas;G. Nicoletti;P. Picchi;P. Zografou;B. Altoon;O. Boyle;A.J. Flavell;A.W. Halley;I. Ten Have;J.L. Hearns;I.S. Hughes;J.G. Lynch;D.J. Martin;R. O'Neill;C. Raine;J.M. Scarr;K. Smith;A.S. Thompson;B. Brandl;O. Braun;R. Geiges;C. Geweniger;P. Hanke;V. Hepp;E.E. Kluge;Y. Maumary;M. Panter;A. Putzer;B. Rensch;A. Stahl;K. Tittel;M. Wunsch;G.J. Barber;A.T. Belk;R. Beuselinck;D.M. Binnie;W. Cameron;M. Cattaneo;P.J. Dornan;S. Dugeay;R.W. Forty;D.N. Gentry;J.F. Hassard;D.G. Miller;D.R. Price;J.K. Sedgbeer;G. Taylor;I.R. Tomalin;P. Girtler;D. Kuhn;G. Rudolph;T.J. Brodbeck;C.K. Bowdery;A.J. Finch;F. Foster;G. Hughes;N.R. Keemer;M. Nuttall;B.S. Rowlingson;T. Sloan;S.W. Snow;T. Barczewski;L.A.T. Bauerdick;K. Kleinknecht;D. Pollmann;B. Renk;S. Roehn;H.-G. Sander;M. Schmelling;F. Steeg;J.-P. Albanese;J.-J. Aubert;C. Benchouk;A. Bonissent;F. Etienne;R. Nacasch;P. Payre;B. Pietrzyk;Z. Qian;W. Blum;P. Cattaneo;M. Comin;G. Cowan;B. Dehning;H. Dietl;M. Fernandez-Bosman;D. Hauff;A. Jahn;E. Lange;G. Lütjens;G. Lutz;W. Männer;H.-G. Moser;Y. Pan;R. Richter;A.S. Schwarz;R. Settles;U. Stiegler;U. Stierlin;G. Stimpfl;J. Thomas;G. Waltermann;G. De Bouard;J. Boucrot;O. Callot;A. Cordier;M. Davier;G. Ganis;J.-F. Grivaz;Ph. Heusse;P. Janot;V. Journé;D.W. Kim;J. Lefrançois;D. Lloyd-Owen;A.-M. Lutz;P. Marotte;J.-J. Veillet;S.R. Amendolia;G. Bagliesi;G. Batignani;L. Bosisio;U. Bottigli;C. Bradaschia;I. Ferrante;F. Fidecaro;L. Foà;E. Focardi;F. Forti;A. Giassi;M.A. Giorgi;F. Ligabue;A. Lusiani;E.B. Mannelli;P.S. Marrocchesi;A. Messineo;F. Palla;G. Sanguinetti;S. Scapellato;J. Steinberger;R. Tenchini;G. Tonelli;G. Triggiani;J.M. Carter;B.J. Green;M.G. Green;A.K. McKemey;P.V. March;T. Medcalf;M.R. Saich;J.A. Strong;R.M. Thomas;T. Wildish;D.R. Botterill;R.W. Clifft;T.R. Edgecock;M. Edwards;S.M. Fisher;J. Harvey;D.L. Hill;T.J. Jones;M. Morrissey;P.r. Norton;D.P. Salmon;J.C. Thompson;B. Bloch-Devaux;P. Colas;C. Klopfenstein;E. Lançon;E. Locci;S. Loucatos;L. Mirabito;E. Monnier;P. Perez;F. Perrier;J. Rander;J.-F. Renardy;A. Roussarie;J.-P. Schuller;J.G. Ashman;C.N. Booth;F. Combley;M. Dinsdale;J. Martin;D. Parker;L.F. Thompson;S. Brandt;H. Burkhardt;C. Grupen;H. Meinhard;E. Neugebauer;U. Schäfer;H. Seywerd;K. Stupperich;B. Gobbo;F. Liello;E. Milotti;F. Ragusa;L. Roland;L. Bellantoni;J.F. Boudreau;D. Cinabro;J.S. Conway;D.F. Cowen;Z. Feng;J.L. Harton;J. Hilgart;R.C. Jared;R.P. Johnson;B.W. Leclaire;Y.B. Pan;T. Parker;J.R. Pater;Y. Saadi;V. Sharma;J.A. Wear;F.V. Weber; Sau Lan Wu;S.T. Xue;G. Zobernig
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/627201
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