The data collected at centre-of-mass energies ranging from 130 to 172 GeV by ALEPH at LEP, corresponding to an integrated luminosity of 27.5 pb−1, are analysed in a search for pair-produced charged Higgs bosons H±. Three analyses are employed to select the , and final states. No evidence for a signal is found. Mass limits are set as a function of the branching fraction for H±→τν. Charged Higgs bosons with masses below 52 GeV/c2 are excluded at 95% C.L. independently of , thus significantly improving on existing limits.

Search for charged Higgs bosons in e+e− collisions at centre-of-mass energies from 130 to 172 GeV / R Barate;D Buskulic;D Decamp;P Ghez;C Goy;J.-P Lees;A Lucotte;M.-N Minard;J.-Y Nief;B Pietrzyk;M.P Casado;M Chmeissani;P Comas;J.M Crespo;M Delfino;E Fernandez;M Fernandez-Bosman;Ll Garrido;A Juste;M Martinez;G Merino;R Miquel;Ll.M Mir;C Padilla;I.C Park;A Pascual;J.A Perlas;I Riu;F Sanchez;A Colaleo;D Creanza;M de Palma;G Gelao;G Iaselli;G Maggi;M Maggi;N Marinelli;S Nuzzo;A Ranieri;G Raso;F Ruggieri;G Selvaggi;L Silvestris;P Tempesta;A Tricomi;G Zito;X Huang;J Lin;Q Ouyang;T Wang;Y Xie;R Xu;S Xue;J Zhang;L Zhang;W Zhao;D Abbaneo;R Alemany;A.O Bazarko;U Becker;P Bright-Thomas;M Cattaneo;F Cerutti;G Dissertori;H Drevermann;R.W Forty;M Frank;F Gianotti;R Hagelberg;J.B Hansen;J Harvey;P Janot;B Jost;E Kneringer;I Lehraus;P Mato;A Minten;L Moneta;A Pacheco;J.-F Pusztaszeri;F Ranjard;G Rizzo;L Rolandi;D Rousseau;D Schlatter;M Schmitt;O Schneider;W Tejessy;F Teubert;I.R Tomalin;H Wachsmuth;A Wagner;Z Ajaltouni;A Barrès;C Boyer;A Falvard;C Ferdi;P Gay;C Guicheney;P Henrard;J Jousset;B Michel;S Monteil;J-C Montret;D Pallin;P Perret;F Podlyski;J Proriol;P Rosnet;J.-M Rossignol;T Fearnley;J.D Hansen;J.R Hansen;P.H Hansen;B.S Nilsson;B Rensch;A Wäänänen;G Daskalakis;A Kyriakis;C Markou;E Simopoulou;A Vayaki;A Blondel;J.C Brient;F Machefert;A Rougé;M Rumpf;A Valassi;H Videau;T Boccali;E Focardi;G Parrini;K Zachariadou;R Cavanaugh;M Corden;C Georgiopoulos;T Huehn;D.E Jaffe;A Antonelli;G Bencivenni;G Bologna;F Bossi;P Campana;G Capon;D Casper;V Chiarella;G Felici;P Laurelli;G Mannocchi;F Murtas;G.P Murtas;L Passalacqua;M Pepe-Altarelli;L Curtis;S.J Dorris;A.W Halley;I.G Knowles;J.G Lynch;V O'Shea;C Raine;J.M Scarr;K Smith;P Teixeira-Dias;A.S Thompson;E Thomson;F Thomson;R.M Turnbull;O Buchmüller;S Dhamotharan;C Geweniger;G Graefe;P Hanke;G Hansper;V Hepp;E.E Kluge;A Putzer;J Sommer;K Tittel;S Werner;M Wunsch;R Beuselinck;D.M Binnie;W Cameron;P.J Dornan;M Girone;S Goodsir;E.B Martin;P Morawitz;A Moutoussi;J Nash;J.K Sedgbeer;P Spagnolo;A.M Stacey;M.D Williams;V.M Ghete;P Girtler;D Kuhn;G Rudolph;A.P Betteridge;C.K Bowdery;P.G Buck;P Colrain;G Crawford;A.J Finch;F Foster;G Hughes;R.W.L Jones;T Sloan;E.P Whelan;M.I Williams;I Giehl;C Hoffmann;K Jakobs;K Kleinknecht;G Quast;B Renk;E Rohne;H.-G Sander;P van Gemmeren;C Zeitnitz;J.J Aubert;C Benchouk;A Bonissent;G Bujosa;J Carr;P Coyle;C Diaconu;A Ealet;D Fouchez;N Konstantinidis;O Leroy;F Motsch;P Payre;M Talby;A Sadouki;M Thulasidas;A Tilquin;K Trabelsi;M Aleppo;M Antonelli;F Ragusa;R Berlich;W Blum;V Büscher;H Dietl;G Ganis;C Gotzhein;H Kroha;G Lütjens;G Lutz;W Männer;H.-G Moser;R Richter;A Rosado-Schlosser;S Schael;R Settles;H Seywerd;R St. Denis;H Stenzel;W Wiedenmann;G Wolf;J Boucrot;O Callot;S Chen;M Davier;L Duflot;J.-F Grivaz;Ph Heusse;A Höcker;A Jacholkowska;D.W Kim;F Le Diberder;J Lefrançois;A.-M Lutz;M Marumi;M.-H Schune;L Serin;E Tournefier;J.-J Veillet;I Videau;D Zerwas;P Azzurri;G Bagliesi;S Bettarini;C Bozzi;G Calderini;V Ciulli;R Dell'Orso;R Fantechi;I Ferrante;A Giassi;A Gregorio;F Ligabue;A Lusiani;P.S Marrocchesi;A Messineo;F Palla;G Sanguinetti;A Sciabà;G Sguazzoni;J Steinberger;R Tenchini;C Vannini;A Venturi;P.G Verdini;G.A Blair;L.M Bryant;J.T Chambers;M.G Green;T Medcalf;P Perrodo;J.A Strong;J.H von Wimmersperg-Toeller;D.R Botterill;R.W Clifft;T.R Edgecock;S Haywood;P Maley;P.R Norton;J.C Thompson;A.E Wright;B Bloch-Devaux;P Colas;B Fabbro;E Lançon;M.C Lemaire;E Locci;P Perez;J Rander;J.-F Renardy;A Rosowsky;A Roussarie;J Schwindling;A Trabelsi;B Vallage;S.N Black;J.H Dann;H.Y Kim;A.M Litke;M.A McNeil;G Taylor;C.N Booth;C.A.J Brew;S Cartwright;F Combley;M.S Kelly;M Lehto;J Reeve;L.F Thompson;K Affholderbach;A Böhrer;S Brandt;G Cowan;J Foss;C Grupen;L Smolik;F Stephan;M Apollonio;L Bosisio;R Della Marina;G Giannini;B Gobbo;G Musolino;J Putz;J Rothberg;S Wasserbaech;R.W Williams;S.R Armstrong;E Charles;P Elmer;D.P.S Ferguson;Y Gao;S González;T.C Greening;O.J Hayes;H Hu;S Jin;P.A McNamara III;J.M Nachtman;J Nielsen;W Orejudos;Y.B Pan;Y Saadi;I.J Scott;J Walsh;Sau Lan Wu;X Wu;J.M Yamartino;G Zobernig. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - ELETTRONICO. - 418:(1998), pp. 419-429. [10.1016/S0370-2693(97)01490-1]

Search for charged Higgs bosons in e+e− collisions at centre-of-mass energies from 130 to 172 GeV

FOCARDI, ETTORE;CIULLI, VITALIANO;
1998

Abstract

The data collected at centre-of-mass energies ranging from 130 to 172 GeV by ALEPH at LEP, corresponding to an integrated luminosity of 27.5 pb−1, are analysed in a search for pair-produced charged Higgs bosons H±. Three analyses are employed to select the , and final states. No evidence for a signal is found. Mass limits are set as a function of the branching fraction for H±→τν. Charged Higgs bosons with masses below 52 GeV/c2 are excluded at 95% C.L. independently of , thus significantly improving on existing limits.
1998
418
419
429
R Barate;D Buskulic;D Decamp;P Ghez;C Goy;J.-P Lees;A Lucotte;M.-N Minard;J.-Y Nief;B Pietrzyk;M.P Casado;M Chmeissani;P Comas;J.M Crespo;M Delfino;E Fernandez;M Fernandez-Bosman;Ll Garrido;A Juste;M Martinez;G Merino;R Miquel;Ll.M Mir;C Padilla;I.C Park;A Pascual;J.A Perlas;I Riu;F Sanchez;A Colaleo;D Creanza;M de Palma;G Gelao;G Iaselli;G Maggi;M Maggi;N Marinelli;S Nuzzo;A Ranieri;G Raso;F Ruggieri;G Selvaggi;L Silvestris;P Tempesta;A Tricomi;G Zito;X Huang;J Lin;Q Ouyang;T Wang;Y Xie;R Xu;S Xue;J Zhang;L Zhang;W Zhao;D Abbaneo;R Alemany;A.O Bazarko;U Becker;P Bright-Thomas;M Cattaneo;F Cerutti;G Dissertori;H Drevermann;R.W Forty;M Frank;F Gianotti;R Hagelberg;J.B Hansen;J Harvey;P Janot;B Jost;E Kneringer;I Lehraus;P Mato;A Minten;L Moneta;A Pacheco;J.-F Pusztaszeri;F Ranjard;G Rizzo;L Rolandi;D Rousseau;D Schlatter;M Schmitt;O Schneider;W Tejessy;F Teubert;I.R Tomalin;H Wachsmuth;A Wagner;Z Ajaltouni;A Barrès;C Boyer;A Falvard;C Ferdi;P Gay;C Guicheney;P Henrard;J Jousset;B Michel;S Monteil;J-C Montret;D Pallin;P Perret;F Podlyski;J Proriol;P Rosnet;J.-M Rossignol;T Fearnley;J.D Hansen;J.R Hansen;P.H Hansen;B.S Nilsson;B Rensch;A Wäänänen;G Daskalakis;A Kyriakis;C Markou;E Simopoulou;A Vayaki;A Blondel;J.C Brient;F Machefert;A Rougé;M Rumpf;A Valassi;H Videau;T Boccali;E Focardi;G Parrini;K Zachariadou;R Cavanaugh;M Corden;C Georgiopoulos;T Huehn;D.E Jaffe;A Antonelli;G Bencivenni;G Bologna;F Bossi;P Campana;G Capon;D Casper;V Chiarella;G Felici;P Laurelli;G Mannocchi;F Murtas;G.P Murtas;L Passalacqua;M Pepe-Altarelli;L Curtis;S.J Dorris;A.W Halley;I.G Knowles;J.G Lynch;V O'Shea;C Raine;J.M Scarr;K Smith;P Teixeira-Dias;A.S Thompson;E Thomson;F Thomson;R.M Turnbull;O Buchmüller;S Dhamotharan;C Geweniger;G Graefe;P Hanke;G Hansper;V Hepp;E.E Kluge;A Putzer;J Sommer;K Tittel;S Werner;M Wunsch;R Beuselinck;D.M Binnie;W Cameron;P.J Dornan;M Girone;S Goodsir;E.B Martin;P Morawitz;A Moutoussi;J Nash;J.K Sedgbeer;P Spagnolo;A.M Stacey;M.D Williams;V.M Ghete;P Girtler;D Kuhn;G Rudolph;A.P Betteridge;C.K Bowdery;P.G Buck;P Colrain;G Crawford;A.J Finch;F Foster;G Hughes;R.W.L Jones;T Sloan;E.P Whelan;M.I Williams;I Giehl;C Hoffmann;K Jakobs;K Kleinknecht;G Quast;B Renk;E Rohne;H.-G Sander;P van Gemmeren;C Zeitnitz;J.J Aubert;C Benchouk;A Bonissent;G Bujosa;J Carr;P Coyle;C Diaconu;A Ealet;D Fouchez;N Konstantinidis;O Leroy;F Motsch;P Payre;M Talby;A Sadouki;M Thulasidas;A Tilquin;K Trabelsi;M Aleppo;M Antonelli;F Ragusa;R Berlich;W Blum;V Büscher;H Dietl;G Ganis;C Gotzhein;H Kroha;G Lütjens;G Lutz;W Männer;H.-G Moser;R Richter;A Rosado-Schlosser;S Schael;R Settles;H Seywerd;R St. Denis;H Stenzel;W Wiedenmann;G Wolf;J Boucrot;O Callot;S Chen;M Davier;L Duflot;J.-F Grivaz;Ph Heusse;A Höcker;A Jacholkowska;D.W Kim;F Le Diberder;J Lefrançois;A.-M Lutz;M Marumi;M.-H Schune;L Serin;E Tournefier;J.-J Veillet;I Videau;D Zerwas;P Azzurri;G Bagliesi;S Bettarini;C Bozzi;G Calderini;V Ciulli;R Dell'Orso;R Fantechi;I Ferrante;A Giassi;A Gregorio;F Ligabue;A Lusiani;P.S Marrocchesi;A Messineo;F Palla;G Sanguinetti;A Sciabà;G Sguazzoni;J Steinberger;R Tenchini;C Vannini;A Venturi;P.G Verdini;G.A Blair;L.M Bryant;J.T Chambers;M.G Green;T Medcalf;P Perrodo;J.A Strong;J.H von Wimmersperg-Toeller;D.R Botterill;R.W Clifft;T.R Edgecock;S Haywood;P Maley;P.R Norton;J.C Thompson;A.E Wright;B Bloch-Devaux;P Colas;B Fabbro;E Lançon;M.C Lemaire;E Locci;P Perez;J Rander;J.-F Renardy;A Rosowsky;A Roussarie;J Schwindling;A Trabelsi;B Vallage;S.N Black;J.H Dann;H.Y Kim;A.M Litke;M.A McNeil;G Taylor;C.N Booth;C.A.J Brew;S Cartwright;F Combley;M.S Kelly;M Lehto;J Reeve;L.F Thompson;K Affholderbach;A Böhrer;S Brandt;G Cowan;J Foss;C Grupen;L Smolik;F Stephan;M Apollonio;L Bosisio;R Della Marina;G Giannini;B Gobbo;G Musolino;J Putz;J Rothberg;S Wasserbaech;R.W Williams;S.R Armstrong;E Charles;P Elmer;D.P.S Ferguson;Y Gao;S González;T.C Greening;O.J Hayes;H Hu;S Jin;P.A McNamara III;J.M Nachtman;J Nielsen;W Orejudos;Y.B Pan;Y Saadi;I.J Scott;J Walsh;Sau Lan Wu;X Wu;J.M Yamartino;G Zobernig
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