Measurement of the W mass by direct reconstruction in e+e- collisions at 172 GeV

6533b85cfe1ef96bd12bd4ba

RESEARCH PRODUCT

Measurement of the W mass by direct reconstruction in e+e- collisions at 172 GeV

Jordan Nash Claus Grupen S. Gonzalez K. Tittel Konrad Kleinknecht Jie Zhang G. Hansper M. C. Lemaire H. Videau L. Moneta L. Moneta Mossadek Talby H. Hu P. A. Mcnamara S. Schael M. De Palma G. Felici J. A. Perlas D. E. Jaffe V. Chiarella F. Gianotti M.d. Williams B. Pietrzyk W. Tejessy Pablo Rodriguez Perez A. Ranieri H. Dietl John H. L. Hansen J.m. Yamartino M. A. Mcneil H. Drevermann Alain Bonissent S. L. Cartwright M. Pepe-altarelli I. Videau R. W. Clifft A. Blondel S. Wasserbaech C. Benchouk G. Maggi Dirk Zerwas S. Werner Ian R Tomalin J. Putz Q. Ouyang G. Bencivenni I. Ferrante J. J. Veillet A. Trabelsi O. Buchmüller Manuel Delfino R. Hagelberg Salvatore Nuzzo G. Bujosa G. Giannini M. I. Williams G. Faïf Piero Giorgio Verdini A. Rougé F. Le Diberder R. Barate Roger Forty J.g. Lynch E. P. Whelan Jiali Lin C. Gotzhein U. Becker E. Charles B. Michel T. R. Edgecock H. G. Sander V. M. Ghete G.p. Murtas Kevin M. Smith F. Stephan A. Roussarie N. Konstantinidis P. Colrain G. Hughes Lei Zhang Lucia Silvestris A. W. Halley P. S. Marrocchesi Olivier Deschamps F. Motsch O. Callot O. Callot P. Ghez T. Boccali Werner Wiedenmann G.a. Blair B. Renk Paolo Azzurri F. Combley Stephen Haywood Y. S. Gao Günther Dissertori Roberto Dell'orso J. C. Brient Andre Tilquin A. P. Betteridge Giuseppe Zito C. Vannini Giuseppe Iaselli D. M. Binnie Ettore Focardi Ph Heusse Arnaud Lucotte A. Gregorio André Rosowsky T. Fearnley Val O'shea W. Blum J. Nielsen Fabrizio Palla A. Wäänänen D. Schlatter John Rander L. Passalacqua J.j. Ward Dominique Pallin P. Teixeira-dias P. Henrard Gy. Wolf M. Thulasidas C. Raine Karl Jakobs I. Giehl B. Fabbro B. Vallage Ziad Ajaltouni S. Goodsir K. Affholderbach Hasko Stenzel S. Dhamotharan M. Apollonio Francesco Ragusa Peter Elmer Jean-francois Grivaz G. A. Cowan G. Parrini P. Spagnolo V. Büscher Yuehong Xie S.n. Black J-c. Montret J. Steinberger R. Xu P. Coyle G. Chazelle J. J. Aubert Alessia Tricomi Ll. M. Mir F. Bossi A. Putzer Mario Antonelli S. Monteil H.y. Kim P. J. Dornan Franco Ligabue P. Perrodo Giuseppe Bagliesi Giuseppe Bagliesi Robert Richter R. Della Marina J. Carr D.p.s. Ferguson P. Mato J.t. Chambers J. D. Hansen J. C. Thompson Georg Zobernig P. Colas B. Gobbo Christian Zeitnitz J. Boucrot F. Podlyski D. Buskulic A. Vayaki B.s. Nilsson Eb Martin Marco Cattaneo J. K. Sedgbeer P. Payre M. Martinez Ramon Miquel A. S. Thompson E. Fernandez Giacomo Sguazzoni G. Sanguinetti M.-n. Minard S. Xue G. Lutz P. R. Norton Alberto Lusiani T. Medcalf Eric Lancon A. Sciabà E. Tournefier M. G. Green Duccio Abbaneo Aristotelis Kyriakis Patrick Janot P. Maley P.g. Bright-thomas B. Bloch-devaux Ting Wang J. F. Renardy J. Coles T. Huehn G. Lütjens Imma Riu Elizabeth Locci J. Sommer D. Decamp C. Markou P. Perret H. Przysiezniak C. Hoffmann R. Berlich S. Brandt O.j. Hayes K. Zachariadou A. Valassi M. Davier R. Settles T.c. Greening M. Rumpf Hubert Kroha B. Jost Pierluigi Campana S. Chen W. Männer C. Goy S. J. Dorris J. A. Strong Alberto Messineo G. Calderini J. F. Pusztaszeri J. F. Pusztaszeri Evelyn Thomson M. Chmeissani E. Simopoulou F. Cerutti P. Girtler Vitaliano Ciulli David Rousseau J. Foss Georgios Daskalakis Laurent Serin F. Murtas Sau Lan Wu P. Van Gemmeren John-bjarne Hansen Christopher Brew Jane Nachtman Jane Nachtman Laurent Duflot Lester D.r. Thompson C. Geweniger M H. Lehto L. M. Bryant C. Guicheney J. Reeve I.j. Scott A. Pascual A. Wagner J. M. Crespo S. Bettarini C. Ferdi Y. B. Pan Philippe Rosnet F. Ruggieri E. Rohne H. Seywerd Peter Hansen C. Mannert Olivier Leroy R.w. Williams G. Musolino E. E. Kluge D. Kuhn M. Girone V. Hepp Anna Colaleo Ll. Garrido Ll. Garrido Joseph Rothberg C. Bozzi F. Thomson R. W. L. Jones B. Rensch G. Graefe Alain Falvard A. Höcker X. Huang Paolo Laurelli R. Cavanaugh M. Aleppo D. Fouchez J. P. Lees A. Rosado-schlosser Alan Litke Mario Maggi R. Beuselinck A. Böhrer G. Merino Donato Creanza P. Morawitz John T Harvey R. Fantechi Alessandro Giassi Giuseppe Raso G. Rudolph G. Rizzo Nancy Marinelli K. Trabelsi Maria Pilar Casado C. K. Bowdery Andrea Venturi M. H. Schune P. Negus I. Lehraus Markus Frank M. Corden D. W. Kim D. W. Kim F. Ranjard Emmerich Kneringer A. Antonelli A. Moutoussi F. Teubert J. Lefrançois F. Sanchez A.e. Wright W. Zhao L. Curtis M. Fernandez-bosman A. Sadouki F. Badaud R. Alemany Marcel Vreeswijk Marumi Kado L. Rolandi Joseph Proriol G. Capon J.y. Nief G. Mannocchi A. Juste Gunter Quast Xin Wu D. R. Botterill Giovanna Selvaggi S.r. Armstrong Y. Saadi O. Schneider M. Wunsch F. Foster M.s. Kelly Stephane Jezequel D. Casper A. Pacheco L. Smolik L. Bosisio Roberto Tenchini J. H. Von Wimmersperg-toeller C. Georgiopoulos J. M. Scarr E. Grauges G. Boix F. Machefert J. J. Walsh G. Gelao W. Cameron Alexander Finch S. Jin A. Minten Inkyu Park G. Crawford H. G. Moser Gerardo Ganis P.g. Buck G. Bologna G. B. Taylor P. Tempesta H. Wachsmuth W. Orejudos A. Ealet Paul Hanke A. Jacholkowska C. N. Booth J. Jousset Michael Schmitt A. M. Lutz J.h. Dann

subject

Physics Nuclear and High Energy Physics Particle physics [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex]010308 nuclear & particles physics Electron–positron annihilation Monte Carlo method High Energy Physics::Phenomenology 01 natural sciences Luminosity ALEPH Experiment Nuclear physics Distribution (mathematics)0103 physical sciences Mass spectrum [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Invariant mass High Energy Physics::Experiment 010306 general physics Nuclear Experiment ALEPH experiment Particle Physics - Experiment Energy (signal processing)

description

The mass of the W boson is obtained from reconstructed invariant mass distributions in W-pair events. The sample of W pairs is selected from 10.65 pb(-1) collected with the ALEPH detector at a mean centre-of-mass energy of 172.09 GeV. The invariant mass distribution of simulated events are fitted to the experimental; distributions and the following W masses are obtained: WW --> , m(W) = 81.30 +/- 0.47(stat.) +/- 0.11(syst.)GeV/c(2), WW --> l nu (l=e,mu), m(W) = 80.54 +/- 0.47(stat.) +/- 0.11(syst.)GeV/c(2), WW --> tau nu, m(W) = 79.56 +/- 1.08(stat.) +/- 0.23(syst.) GeV/c(2). The statistical errors are the expected errors for Monte Carlo samples of the same integrated luminosity as the data. The combination of these three measurements gives: m(W) = 80.80 +/- 0.32(stat.) +/- 0.11(syst.) +/- 0.03(LEP energy) GeV/c(2). (C) 1998 Elsevier Science B.V.

year	journal	country	edition	language
1998-01-01

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