In a sample of 200 000 Z decays, events with two leptons and an additional pair of charged particles are studied. The 35 events found show a possible excess in the tau channel compared with the expectation from electroweak processes. The features of the events are consistent with radiation of virtual photons.

Charged particle pair production associated with a lepton pair in Z decays. indication of an excess in the tau channel / D. Decamp;B. Deschizeaux;C. Goy;J.-P. Lees;M.-N. Minard;R. Alemany;J.M. Crespo;M. Delfino;E. Fernandez;V. Gaitan;Ll. Garrido;Ll.M. Mir;A. Pacheco;M.G. Catanesi;D. Creanza;M. de Palma;A. Farilla;G. Iaselli;G. Maggi;M. Maggi;S. Natali;S. Nuzzo;M. Quattromini;A. Ranieri;G. Raso;F. Romano;F. Ruggieri;G. Selvaggi;L. Silvestris;P. Tempesta;G. Zito;Y. Gao;H. Hu;D. Huang;X. Huang;J. Lin;J. Lou;C. Qiao;T. Ruan;T. Wang;Y. Xie;D. Xu;R. Xu;J. Zhang;W. Zhao;W.B. Atwood;L.A.T. Bauerdick;F. Bird;E. Blucher;G. Bonvicini;F. Bossi;D. Brown;T.H. Burnett;H. Drevermann;R.W. Forty;C. Grab;R. Hagelberg;S. Haywood;J. Hilgart;B. Jost;M. Kasemann;J. Knobloch;A. Lacourt;E. Lançon;I. Lehraus;T. Lohse;A. Marchioro;M. Martinez;P. Mato;S. Menary;A. Minten;A. Miotto;R. Miquel;H.-G. Moser;J. Nash;P. Palazzi;F. Ranjard;G. Redlinger;A. Roth;J. Rothberg;H. Rotscheidt;R. St.Denis;D. Schlatter;M. Takashima;M. Talby;W. Tejessy;H. Wachsmuth;S. Wasserbaech;S. Wheeler;W. Wiedenmann;W. Witzeling;J. Wotschack;W. Wu;Z. Ajaltouni;M. Bardadin-Otwinowska;A. Falvard;R. El Fellous;P. Gay;J. Harvey;P. Henrard;J. Jousset;B. Michel;J.-C. Montret;D. Pallin;P. Perret;J. Proriol;F. Prulhière;G. Stimpfl;J.D. Hansen;J.R. Hansen;P.H. Hansen;R. Møllerud;E.R. Nielsen;B.S. Nilsson;I. Efthymiopoulos;E. Simopoulou;A. Vayaki;J. Badier;A. Blondel;G. Bonneaud;J. Bourotte;F. Braems;J.C. Brient;G. Fouque;A. Gamess;R. Guirlet;S. Orteu;A. Rosowsky;A. Rougé;M. Rumpf;R. Tanaka;H. Videau;D.J. Candlin;E. Veitch;G. Parrini;M. Corden;C. Georgiopoulos;M. Ikeda;J. Lannutti;D. Levinthal;M. Mermikides;L. Sawyer;A. Antonelli;R. Baldini;G. Bencivenni;G. Bologna;P. Campana;G. Capon;F. Cerutti;V. Chiarella;B. D'Ettorre-Piazzoli;G. Felici;P. Laurelli;G. Mannocchi;F. Murtas;G.P. Murtas;G. Nicoletti;L. Passalacqua;M. Pepe-Altarelli;P. Picchi;P. Zografou;B. Altoon;O. Boyle;A.W. Halley;I. ten Have;J.L. Hearns;J.G. Lynch;W.T. Morton;C. Raine;J.M. Scarr;K. Smith;A.S. Thompson;R.M. Turnbull;B. Brandl;O. Braun;R. Geiges;C. Geweniger;P. Hanke;V. Hepp;E.E. Kluge;Y. Maumary;A. Putzer;B. Rensch;A. Stahl;K. Tittel;M. Wunsch;A.T. Belk;R. Beuselinck;D.M. Binnie;W. Cameron;M. Cattaneo;P.J. Dornan;S. Dugeay;A.M. Greene;N.M. Lieske;S.J. Patton;D.G. Payne;M.J. Phillips;J.K. Sedgbeer;G. Taylor;I.R. Tomalin;A.G. Wright;P. Girtler;D. Kuhn;G. Rudolph;C.K. Bowdery;T.J. Brodbeck;A.J. Finch;F. Foster;G. Hughes;N.R. Keemer;M. Nuttall;A. Patel;B.S. Rowlingson;T. Sloan;S.W. Snow;E.P. Whelan;T. Barczewski;K. Kleinknecht;J. Raab;B. Renk;S. Roehn;H.-G. Sander;M. Schmelling;H. Schmidt;F. Steeg;S.M. Walther;B. Wolf;J.-P. Albanese;J.-J. Aubert;C. Benchouk;V. Bernard;A. Bonissent;D. Courvoisier;F. Etienne;S. Papalexiou;P. Payre;B. Pietrzyk;Z. Qian;H. Becker;W. Blum;P. Cattaneo;G. Cowan;B. Dehning;H. Dietl;F. Dydak;M. Fernandez-Bosman;T. Hansl-Kozanecka;A. Jahn;W. Kozanecki;E. Lange;J. Lauber;G. Lütjens;G. Lutz;W. Männer;Y. Pan;R. Richter;J. Schröder;A.S. Schwarz;R. Settles;U. Stierlin;J. Thomas;G. Wolf;V. Bertin;J. Boucrot;O. Callot;X. Chen;A. Cordier;M. Ganis;J.-F. Grivaz;Ph. Heusse;P. Janot;D.W. Kim;F. Le Diberder;J. Lefrançois;A.-M. Lutz;J.-J. Veillet;I. Videau;Z. Zhang;F. Zomer;D. Abbaneo;S.R. Amendolia;G. Bagliesi;G. Batignani;L. Bosisio;U. Bottigli;C. Bradaschia;M. Carpinelli;M.A. Ciocci;R. Dell'Orso;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;L. Moneta;F. Palla;G. Sanguinetti;J. Steinberger;R. Tenchini;G. Tonelli;G. Triggiani;C. Vannini;A. Venturi;P.G. Verdini;J. Walsh;J.M. Carter;M.G. Green;P.V. March;T. Medcalf;I.S. Quazi;M.R. Saich;J.A. Strong;R.M. Thomas;L.R. West;T. Wildish;D.R. Botterill;R.W. Clifft;T.R. Edgecock;M. Edwards;S.M. Fisher;T.J. Jones;P.R. Norton;D.P. Salmon;J.C. Thompson;B. Bloch-Devaux;P. Colas;C. Klopfenstein;E. Locci;S. Loucatos;E. Monnier;P. Perez;J.A. Perlas;F. Perrier;J. Rander;J.-F. Renardy;A. Roussarie;J.-P. Schuller;J. Schwindling;B. Vallage;J.G. Ashman;C.N. Booth;C. Buttar;R. Carney;S. Cartwright;F. Combley;M. Dinsdale;M. Dogru;F. Hatfield;J. Martin;D. Parker;P. Reeves;L.F. Thompson;S. Brandt;H. Burkhardt;C. Grupen;H. Meinhard;L. Mirabito;E. Neugebauer;U. Schäfer;H. Seywerd;G. Apollinari;G. Giannini;B. Gobbo;F. Liello;F. Ragusa;L. Rolandi;U. Stiegler;L. Bellantoni;J.F. Boudreau;D. Cinabro;X. Chen;J.S. Conway;D.F. Cowen;Z. Feng;D.P.S. Ferguson;Y.S. Gao;J. Grahl;J.L. Harton;J.E. Jacobsen;R.C. Jared;R.P. Johnson;B.W. LeClaire;Y.B. Pan;J.R. Pater;Y. Saadi;V. Sharma;Z.H. Shi;Y.H. Tang;A.M. Walsh;J.A. Wear;F.V. Weber;M.H. Whitney;Lan Wu Sau;G. Zobernig. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - ELETTRONICO. - 263:(1991), pp. 112-122. [10.1016/0370-2693(91)91716-9]

Charged particle pair production associated with a lepton pair in Z decays. indication of an excess in the tau channel

FOCARDI, ETTORE;
1991

Abstract

In a sample of 200 000 Z decays, events with two leptons and an additional pair of charged particles are studied. The 35 events found show a possible excess in the tau channel compared with the expectation from electroweak processes. The features of the events are consistent with radiation of virtual photons.
1991
263
112
122
D. Decamp;B. Deschizeaux;C. Goy;J.-P. Lees;M.-N. Minard;R. Alemany;J.M. Crespo;M. Delfino;E. Fernandez;V. Gaitan;Ll. Garrido;Ll.M. Mir;A. Pacheco;M.G. Catanesi;D. Creanza;M. de Palma;A. Farilla;G. Iaselli;G. Maggi;M. Maggi;S. Natali;S. Nuzzo;M. Quattromini;A. Ranieri;G. Raso;F. Romano;F. Ruggieri;G. Selvaggi;L. Silvestris;P. Tempesta;G. Zito;Y. Gao;H. Hu;D. Huang;X. Huang;J. Lin;J. Lou;C. Qiao;T. Ruan;T. Wang;Y. Xie;D. Xu;R. Xu;J. Zhang;W. Zhao;W.B. Atwood;L.A.T. Bauerdick;F. Bird;E. Blucher;G. Bonvicini;F. Bossi;D. Brown;T.H. Burnett;H. Drevermann;R.W. Forty;C. Grab;R. Hagelberg;S. Haywood;J. Hilgart;B. Jost;M. Kasemann;J. Knobloch;A. Lacourt;E. Lançon;I. Lehraus;T. Lohse;A. Marchioro;M. Martinez;P. Mato;S. Menary;A. Minten;A. Miotto;R. Miquel;H.-G. Moser;J. Nash;P. Palazzi;F. Ranjard;G. Redlinger;A. Roth;J. Rothberg;H. Rotscheidt;R. St.Denis;D. Schlatter;M. Takashima;M. Talby;W. Tejessy;H. Wachsmuth;S. Wasserbaech;S. Wheeler;W. Wiedenmann;W. Witzeling;J. Wotschack;W. Wu;Z. Ajaltouni;M. Bardadin-Otwinowska;A. Falvard;R. El Fellous;P. Gay;J. Harvey;P. Henrard;J. Jousset;B. Michel;J.-C. Montret;D. Pallin;P. Perret;J. Proriol;F. Prulhière;G. Stimpfl;J.D. Hansen;J.R. Hansen;P.H. Hansen;R. Møllerud;E.R. Nielsen;B.S. Nilsson;I. Efthymiopoulos;E. Simopoulou;A. Vayaki;J. Badier;A. Blondel;G. Bonneaud;J. Bourotte;F. Braems;J.C. Brient;G. Fouque;A. Gamess;R. Guirlet;S. Orteu;A. Rosowsky;A. Rougé;M. Rumpf;R. Tanaka;H. Videau;D.J. Candlin;E. Veitch;G. Parrini;M. Corden;C. Georgiopoulos;M. Ikeda;J. Lannutti;D. Levinthal;M. Mermikides;L. Sawyer;A. Antonelli;R. Baldini;G. Bencivenni;G. Bologna;P. Campana;G. Capon;F. Cerutti;V. Chiarella;B. D'Ettorre-Piazzoli;G. Felici;P. Laurelli;G. Mannocchi;F. Murtas;G.P. Murtas;G. Nicoletti;L. Passalacqua;M. Pepe-Altarelli;P. Picchi;P. Zografou;B. Altoon;O. Boyle;A.W. Halley;I. ten Have;J.L. Hearns;J.G. Lynch;W.T. Morton;C. Raine;J.M. Scarr;K. Smith;A.S. Thompson;R.M. Turnbull;B. Brandl;O. Braun;R. Geiges;C. Geweniger;P. Hanke;V. Hepp;E.E. Kluge;Y. Maumary;A. Putzer;B. Rensch;A. Stahl;K. Tittel;M. Wunsch;A.T. Belk;R. Beuselinck;D.M. Binnie;W. Cameron;M. Cattaneo;P.J. Dornan;S. Dugeay;A.M. Greene;N.M. Lieske;S.J. Patton;D.G. Payne;M.J. Phillips;J.K. Sedgbeer;G. Taylor;I.R. Tomalin;A.G. Wright;P. Girtler;D. Kuhn;G. Rudolph;C.K. Bowdery;T.J. Brodbeck;A.J. Finch;F. Foster;G. Hughes;N.R. Keemer;M. Nuttall;A. Patel;B.S. Rowlingson;T. Sloan;S.W. Snow;E.P. Whelan;T. Barczewski;K. Kleinknecht;J. Raab;B. Renk;S. Roehn;H.-G. Sander;M. Schmelling;H. Schmidt;F. Steeg;S.M. Walther;B. Wolf;J.-P. Albanese;J.-J. Aubert;C. Benchouk;V. Bernard;A. Bonissent;D. Courvoisier;F. Etienne;S. Papalexiou;P. Payre;B. Pietrzyk;Z. Qian;H. Becker;W. Blum;P. Cattaneo;G. Cowan;B. Dehning;H. Dietl;F. Dydak;M. Fernandez-Bosman;T. Hansl-Kozanecka;A. Jahn;W. Kozanecki;E. Lange;J. Lauber;G. Lütjens;G. Lutz;W. Männer;Y. Pan;R. Richter;J. Schröder;A.S. Schwarz;R. Settles;U. Stierlin;J. Thomas;G. Wolf;V. Bertin;J. Boucrot;O. Callot;X. Chen;A. Cordier;M. Ganis;J.-F. Grivaz;Ph. Heusse;P. Janot;D.W. Kim;F. Le Diberder;J. Lefrançois;A.-M. Lutz;J.-J. Veillet;I. Videau;Z. Zhang;F. Zomer;D. Abbaneo;S.R. Amendolia;G. Bagliesi;G. Batignani;L. Bosisio;U. Bottigli;C. Bradaschia;M. Carpinelli;M.A. Ciocci;R. Dell'Orso;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;L. Moneta;F. Palla;G. Sanguinetti;J. Steinberger;R. Tenchini;G. Tonelli;G. Triggiani;C. Vannini;A. Venturi;P.G. Verdini;J. Walsh;J.M. Carter;M.G. Green;P.V. March;T. Medcalf;I.S. Quazi;M.R. Saich;J.A. Strong;R.M. Thomas;L.R. West;T. Wildish;D.R. Botterill;R.W. Clifft;T.R. Edgecock;M. Edwards;S.M. Fisher;T.J. Jones;P.R. Norton;D.P. Salmon;J.C. Thompson;B. Bloch-Devaux;P. Colas;C. Klopfenstein;E. Locci;S. Loucatos;E. Monnier;P. Perez;J.A. Perlas;F. Perrier;J. Rander;J.-F. Renardy;A. Roussarie;J.-P. Schuller;J. Schwindling;B. Vallage;J.G. Ashman;C.N. Booth;C. Buttar;R. Carney;S. Cartwright;F. Combley;M. Dinsdale;M. Dogru;F. Hatfield;J. Martin;D. Parker;P. Reeves;L.F. Thompson;S. Brandt;H. Burkhardt;C. Grupen;H. Meinhard;L. Mirabito;E. Neugebauer;U. Schäfer;H. Seywerd;G. Apollinari;G. Giannini;B. Gobbo;F. Liello;F. Ragusa;L. Rolandi;U. Stiegler;L. Bellantoni;J.F. Boudreau;D. Cinabro;X. Chen;J.S. Conway;D.F. Cowen;Z. Feng;D.P.S. Ferguson;Y.S. Gao;J. Grahl;J.L. Harton;J.E. Jacobsen;R.C. Jared;R.P. Johnson;B.W. LeClaire;Y.B. Pan;J.R. Pater;Y. Saadi;V. Sharma;Z.H. Shi;Y.H. Tang;A.M. Walsh;J.A. Wear;F.V. Weber;M.H. Whitney;Lan Wu Sau;G. Zobernig
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/638093
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 19
  • ???jsp.display-item.citation.isi??? 18
social impact