Contact interactions are searched for using the differential cross sections for the reactionse + e –rarre + e –,e + e –rarrµ + µ –,e + e –rarrtau + tau – ande + e –rarrgammagamma measured at 12 energies around theZ peak and corresponding to about 20 pb–1 of cumulated luminosity. Four-fermion contact term models assuming various chiralities of lepton currents are fitted to the lepton data and lower limits on the energy scale Lambda of such terms are set at 95% c.l. The limits vary in the range 0.9–4.7 TeV, depending on the model and on the lepton flavour. Theeegammagamma contact terms are searched for assuming various chiralities. Limits on the energy scale Lambda between 79 and 130 GeV are extracted from the data. The results are compared and combined with those reported at lower energies.

Search for contact interactions in the reactionse + e −→l + l − ande + e −→γγ / D. Buskulic;D. Decamp;C. Goy;J. -P. Lees;M. -N. Minard;B. Mours;B. Pietrzyk;R. Alemany;F. Ariztizabal;P. Comas;J. M. Crespo;M. Delfino;E. Fernandez;M. Fernandez-Bosman;V. Gaitan;LI. Garrido;T. Mattison;A. Pacheco;C. Padilla;A. Pascual;D. Creanza;M. 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. Chai;H. Hu;D. Huang;X. Huang;J. Lin;T. Wang;Y. Xie;D. Xu;R. Xu;J. Zhang;L. Zhang;W. Zhao;L. A. T. Bauerdick;E. Blucher;G. Bonvicini;J. Boudreau;D. Casper;H. Drevermann;R. W. Forty;G. Ganis;C. Gay;R. Hagelberg;J. Harvey;S. Haywood;J. Hilgart;R. Jacobsen;B. Jost;J. Knobloch;I. Lehraus;T. Lohse;A. Lusiani;M. Martinez;P. Mato;H. Meinhard;A. Minten;A. Miotto;R. Miquel;H. -G. Moser;P. Palazzi;J. A. Perlas;J. -F. Pusztaszeri;F. Ranjard;G. Redlinger;L. Rolandi;J. Rothberg;T. Ruan;M. Saich;D. Schlatter;M. Schmelling;F. Sefkow;W. Tejessy;H. Wachsmuth;W. Wiedenmann;T. Wildish;W. Witzeling;J. Wotschack;Z. Ajaltouni;F. Badaud;M. Bardadin-Otwinowska;R. El Fellous;A. Falvard;P. Gay;C. Guicheney;P. Henrard;J. Jousset;B. Michel;J. -C. Montret;D. Pallin;P. Perret;F. Podlyski;J. Proriol;F. Prulhière;F. Saadi;T. Fearnley;J. D. Hansen;J. R. Hansen;P. H. Hansen;R. Møllerud;B. S. Nilsson;I. Efthymiopoulos;A. Kyriakis;E. Simopoulou;A. Vayaki;K. Zachariadou;J. Badier;A. Blondel;G. Bonneaud;J. C. Brient;G. Fouque;S. Orteu;A. Rougé;M. Rumpf;R. Tanaka;M. Verderi;H. Videau;D. J. Candlin;M. I. Parsons;E. Veitch;L. Moneta;G. Parrini;M. Corden;C. Georgiopoulos;M. Ikeda;J. Lannutti;D. Levinthal;M. Mermikides;L. Sawyer;S. Wasserbaech;A. Antonelli;R. Baldini;G. Bencivenni;G. Bologna;F. Bossi;P. Campana;G. Capon;F. Cerutti;V. Chiarella;B. D'Ettorre-Piazzoli;G. Felici;P. Laurelli;G. Mannocchi;F. Murtas;G. P. Murtas;L. Passalacqua;M. Pepe-Altarelli;P. Picchi;P. Colrain;I. Have;J. G. Lynch;W. Maitland;W. T. Morton;C. Raine;P. Reeves;J. M. Scarr;K. Smith;M. G. Smith;A. S. Thompson;R. M. Turnbull;B. Brandl;O. Braun;C. Geweniger;P. Hanke;V. Hepp;E. E. Kluge;Y. Maumary;A. Putzer;B. Rensch;A. Stahl;K. Tittel;M. Wunsch;R. Beuselinck;D. M. Binnie;W. Cameron;M. Cattaneo;D. J. Colling;P. J. Dornan;A. M. Greene;J. F. Hassard;N. M. Lieske;A. Moutoussi;J. Nash;S. Patton;D. G. Payne;M. J. Phillips;G. San Martin;J. K. Sedgbeer;I. R. Tomalin;A. G. Wright;P. Girtler;E. Kneringer;D. Kuhn;G. Rudolph;C. K. Bowdery;T. J. Brodbeck;A. J. Finch;F. Foster;G. Hughes;D. Jackson;N. R. Keemer;M. Nuttall;A. Patel;T. Sloan;S. W. Snow;E. P. Whelan;K. Kleinknecht;J. Raab;B. Renk;H. -G. Sander;H. Schmidt;F. Steeg;S. M. Walther;R. Wanke;B. Wolf;A. M. Bencheikh;C. Benchouk;A. Bonissent;J. Carr;P. Coyle;J. Drinkard;F. Etienne;D. Nicod;S. Papalexiou;P. Payre;L. Roos;D. Rousseau;P. Schwemmling;M. Talby;S. Adlung;R. Assmann;C. Bauer;W. Blum;D. Brown;P. Cattaneo;B. Dehning;H. Dietl;F. Dydak;M. Frank;A. W. Helley;J. Lauber;G. Lütjens;G. Lutz;W. Männer;R. Richter;H. Rotscheidt;J. Schröder;A. S. Schwarz;R. Settles;H. Seywerd;U. Stierlin;U. Stiegler;R. Denis;G. Wolf;J. Boucrot;O. Callot;A. Cordier;M. Davier;L. Duflot;J. -F. Grivaz;Ph. Heusse;D. E. Jaffe;P. Janot;D. W. Kim;F. Diberder;J. Lefrançois;A. -M. Lutz;M. -H. Schune;J. -J. Veillet;I. Videau;Z. Zhang;D. Abbaneo;G. Bagliesi;G. Batignani;L. Bosisio;U. Bottigli;C. Bozzi;G. Calderini;M. Carpinelli;M. A. Ciocci;R. Dell'Orso;I. Ferrante;F. Fidecaro;L. Foà;E. Focardi;F. Forti;A. Giassi;M. A. Giorgi;A. Gregorio;F. Ligabue;E. B. Mannelli;P. S. Marrocchesi;A. Messineo;F. Palla;G. Rizzo;G. Sanguinetti;P. Spagnolo;J. Steinberger;R. Tenchini;G. Tonelli;G. Triggiani;C. Vannini;A. Venturi;P. G. Verdini;J. Walsh;A. P. Betteridge;J. M. Carter;M. G. Green;P. V. March;Ll. M. Mir;T. Medcalf;I. S. Quazi;J. A. Strong;L. R. West;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;H. Duarte;W. Kozanecki;E. Lançon;M. C. Lemaire;E. Locci;P. Perez;F. Perrier;J. Rander;J. -F. Renardy;A. Rosowsky;A. Roussarie;J. -P. Schuller;J. Schwindling;D. Mohand;B. Vallage;R. P. Johnson;A. M. Litke;G. Taylor;J. Wear;J. G. Ashman;W. Babbage;C. N. Booth;C. Buttar;R. E. Carney;S. Cartwright;F. Combley;F. Hatfield;L. F. Thompson;E. Barberio;A. Böhrer;S. Brandt;G. Cowan;C. Grupen;G. Lutters;F. Rivera;U. Schäfer;L. Smolik;H. Trier;R. Della Maria;G. Giannini;B. Gobbo;F. Ragusa;J. Bellantoni;W. Chen;D. Cinabro;J. S. Conway;D. F. Cowen;Z. Feng;D. P. S. Ferguson;Y. S. Gao;J. Grahl;J. L. Harton;R. C. Jared;B. W. LeClaire;C. Lishka;Y. B. Pan;J. R. Pater;Y. Saadi;M. Schmitt;V. Sharma;Z. H. Shi;A. M. Walsh;F. V. Weber;Sau Lan Wu;X. Wu;M. Zheng;G. Zobernig. - In: ZEITSCHRIFT FÜR PHYSIK. C, PARTICLES AND FIELDS. - ISSN 0170-9739. - ELETTRONICO. - 59:(1993), pp. 215-229. [10.1007/BF01566686]

Search for contact interactions in the reactionse + e −→l + l − ande + e −→γγ

FOCARDI, ETTORE;
1993

Abstract

Contact interactions are searched for using the differential cross sections for the reactionse + e –rarre + e –,e + e –rarrµ + µ –,e + e –rarrtau + tau – ande + e –rarrgammagamma measured at 12 energies around theZ peak and corresponding to about 20 pb–1 of cumulated luminosity. Four-fermion contact term models assuming various chiralities of lepton currents are fitted to the lepton data and lower limits on the energy scale Lambda of such terms are set at 95% c.l. The limits vary in the range 0.9–4.7 TeV, depending on the model and on the lepton flavour. Theeegammagamma contact terms are searched for assuming various chiralities. Limits on the energy scale Lambda between 79 and 130 GeV are extracted from the data. The results are compared and combined with those reported at lower energies.
1993
59
215
229
D. Buskulic;D. Decamp;C. Goy;J. -P. Lees;M. -N. Minard;B. Mours;B. Pietrzyk;R. Alemany;F. Ariztizabal;P. Comas;J. M. Crespo;M. Delfino;E. Fernandez;M. Fernandez-Bosman;V. Gaitan;LI. Garrido;T. Mattison;A. Pacheco;C. Padilla;A. Pascual;D. Creanza;M. 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. Chai;H. Hu;D. Huang;X. Huang;J. Lin;T. Wang;Y. Xie;D. Xu;R. Xu;J. Zhang;L. Zhang;W. Zhao;L. A. T. Bauerdick;E. Blucher;G. Bonvicini;J. Boudreau;D. Casper;H. Drevermann;R. W. Forty;G. Ganis;C. Gay;R. Hagelberg;J. Harvey;S. Haywood;J. Hilgart;R. Jacobsen;B. Jost;J. Knobloch;I. Lehraus;T. Lohse;A. Lusiani;M. Martinez;P. Mato;H. Meinhard;A. Minten;A. Miotto;R. Miquel;H. -G. Moser;P. Palazzi;J. A. Perlas;J. -F. Pusztaszeri;F. Ranjard;G. Redlinger;L. Rolandi;J. Rothberg;T. Ruan;M. Saich;D. Schlatter;M. Schmelling;F. Sefkow;W. Tejessy;H. Wachsmuth;W. Wiedenmann;T. Wildish;W. Witzeling;J. Wotschack;Z. Ajaltouni;F. Badaud;M. Bardadin-Otwinowska;R. El Fellous;A. Falvard;P. Gay;C. Guicheney;P. Henrard;J. Jousset;B. Michel;J. -C. Montret;D. Pallin;P. Perret;F. Podlyski;J. Proriol;F. Prulhière;F. Saadi;T. Fearnley;J. D. Hansen;J. R. Hansen;P. H. Hansen;R. Møllerud;B. S. Nilsson;I. Efthymiopoulos;A. Kyriakis;E. Simopoulou;A. Vayaki;K. Zachariadou;J. Badier;A. Blondel;G. Bonneaud;J. C. Brient;G. Fouque;S. Orteu;A. Rougé;M. Rumpf;R. Tanaka;M. Verderi;H. Videau;D. J. Candlin;M. I. Parsons;E. Veitch;L. Moneta;G. Parrini;M. Corden;C. Georgiopoulos;M. Ikeda;J. Lannutti;D. Levinthal;M. Mermikides;L. Sawyer;S. Wasserbaech;A. Antonelli;R. Baldini;G. Bencivenni;G. Bologna;F. Bossi;P. Campana;G. Capon;F. Cerutti;V. Chiarella;B. D'Ettorre-Piazzoli;G. Felici;P. Laurelli;G. Mannocchi;F. Murtas;G. P. Murtas;L. Passalacqua;M. Pepe-Altarelli;P. Picchi;P. Colrain;I. Have;J. G. Lynch;W. Maitland;W. T. Morton;C. Raine;P. Reeves;J. M. Scarr;K. Smith;M. G. Smith;A. S. Thompson;R. M. Turnbull;B. Brandl;O. Braun;C. Geweniger;P. Hanke;V. Hepp;E. E. Kluge;Y. Maumary;A. Putzer;B. Rensch;A. Stahl;K. Tittel;M. Wunsch;R. Beuselinck;D. M. Binnie;W. Cameron;M. Cattaneo;D. J. Colling;P. J. Dornan;A. M. Greene;J. F. Hassard;N. M. Lieske;A. Moutoussi;J. Nash;S. Patton;D. G. Payne;M. J. Phillips;G. San Martin;J. K. Sedgbeer;I. R. Tomalin;A. G. Wright;P. Girtler;E. Kneringer;D. Kuhn;G. Rudolph;C. K. Bowdery;T. J. Brodbeck;A. J. Finch;F. Foster;G. Hughes;D. Jackson;N. R. Keemer;M. Nuttall;A. Patel;T. Sloan;S. W. Snow;E. P. Whelan;K. Kleinknecht;J. Raab;B. Renk;H. -G. Sander;H. Schmidt;F. Steeg;S. M. Walther;R. Wanke;B. Wolf;A. M. Bencheikh;C. Benchouk;A. Bonissent;J. Carr;P. Coyle;J. Drinkard;F. Etienne;D. Nicod;S. Papalexiou;P. Payre;L. Roos;D. Rousseau;P. Schwemmling;M. Talby;S. Adlung;R. Assmann;C. Bauer;W. Blum;D. Brown;P. Cattaneo;B. Dehning;H. Dietl;F. Dydak;M. Frank;A. W. Helley;J. Lauber;G. Lütjens;G. Lutz;W. Männer;R. Richter;H. Rotscheidt;J. Schröder;A. S. Schwarz;R. Settles;H. Seywerd;U. Stierlin;U. Stiegler;R. Denis;G. Wolf;J. Boucrot;O. Callot;A. Cordier;M. Davier;L. Duflot;J. -F. Grivaz;Ph. Heusse;D. E. Jaffe;P. Janot;D. W. Kim;F. Diberder;J. Lefrançois;A. -M. Lutz;M. -H. Schune;J. -J. Veillet;I. Videau;Z. Zhang;D. Abbaneo;G. Bagliesi;G. Batignani;L. Bosisio;U. Bottigli;C. Bozzi;G. Calderini;M. Carpinelli;M. A. Ciocci;R. Dell'Orso;I. Ferrante;F. Fidecaro;L. Foà;E. Focardi;F. Forti;A. Giassi;M. A. Giorgi;A. Gregorio;F. Ligabue;E. B. Mannelli;P. S. Marrocchesi;A. Messineo;F. Palla;G. Rizzo;G. Sanguinetti;P. Spagnolo;J. Steinberger;R. Tenchini;G. Tonelli;G. Triggiani;C. Vannini;A. Venturi;P. G. Verdini;J. Walsh;A. P. Betteridge;J. M. Carter;M. G. Green;P. V. March;Ll. M. Mir;T. Medcalf;I. S. Quazi;J. A. Strong;L. R. West;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;H. Duarte;W. Kozanecki;E. Lançon;M. C. Lemaire;E. Locci;P. Perez;F. Perrier;J. Rander;J. -F. Renardy;A. Rosowsky;A. Roussarie;J. -P. Schuller;J. Schwindling;D. Mohand;B. Vallage;R. P. Johnson;A. M. Litke;G. Taylor;J. Wear;J. G. Ashman;W. Babbage;C. N. Booth;C. Buttar;R. E. Carney;S. Cartwright;F. Combley;F. Hatfield;L. F. Thompson;E. Barberio;A. Böhrer;S. Brandt;G. Cowan;C. Grupen;G. Lutters;F. Rivera;U. Schäfer;L. Smolik;H. Trier;R. Della Maria;G. Giannini;B. Gobbo;F. Ragusa;J. Bellantoni;W. Chen;D. Cinabro;J. S. Conway;D. F. Cowen;Z. Feng;D. P. S. Ferguson;Y. S. Gao;J. Grahl;J. L. Harton;R. C. Jared;B. W. LeClaire;C. Lishka;Y. B. Pan;J. R. Pater;Y. Saadi;M. Schmitt;V. Sharma;Z. H. Shi;A. M. Walsh;F. V. Weber;Sau Lan Wu;X. Wu;M. Zheng;G. Zobernig
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