Measurement of the W boson mass and width in e+e- collisions at LEP
Measurement of the W boson mass and width in e+e- collisions at LEP
复制标题
LEP 电子碰撞中 W 玻色子质量和宽度的测量
DOI:
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发表时间:
2006
期刊:
影响因子:
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通讯作者:
The Aleph Collaboration
中科院分区:
文献类型:
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作者:
S. Schael;R. Barate;R. Brunelière;I. de Bonis;D. Decamp;C. Goy;S. Jézéquel;J. Lees;F. Martin;E. Merle;M. Minard;B. Pietrzyk;B. Trocmé;S. Bravo;M. P. Casado;M. Chmeissani;J. M. Crespo;E. Fernández;M. Fernandez;L. Garrido;M. Martinez;A. Pacheco;H. Ruiz;A. Colaleo;D. Creanza;N. De Filippis;M. De Palma;G. Iaselli;G. Maggi;M. Maggi;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;T. Barklow;O. Buchmüller;M. Cattaneo;B. Clerbaux;H. Drevermann;R. Forty;M. Frank;F. Gianotti;J. Hansen;J. Harvey;D. Hutchcroft;P. Janot;B. Jost;M. Kado;P. Mato;A. Moutoussi;F. Ranjard;L. Rolandi;D. Schlatter;F. Teubert;A. Valassi;I. Videau;F. Badaud;S. Dessagne;A. Falvard;D. Fayolle;P. Gay;J. Jousset;B. Michel;S. Monteil;D. Pallin;J. M. Pascolo;P. Perret;J. D. Hansen;J. Hansen;P. Hansen;A. Kraan;B. Nilsson;A. Kyriakis;C. Markou;E. Simopoulou;A. Vayaki;K. Zachariadou;A. Blondel;J. Brient;F. Machefert;A. Rougé;H. Videau;V. Ciulli;E. Focardi;G. Parrini;A. Antonelli;M. Antonelli;G. Bencivenni;F. Bossi;G. Capon;F. Cerutti;V. Chiarella;P. Laurelli;G. Mannocchi;G. Murtas;L. Passalacqua;J. Kennedy;J. Lynch;P. Negus;V. O’Shea;A. Thompson;S. Wasserbaech;R. Cavanaugh;S. Dhamotharan;C. Geweniger;P. Hanke;V. Hepp;E. Kluge;A. Putzer;H. Stenzel;K. Tittel;M. Wunsch;R. Beuselinck;W. Cameron;G. Davies;P. Dornan;M. Girone;N. Marinelli;J. Nowell;S. Rutherford;J. Sedgbeer;J. Thompson;R. White;V. Ghete;P. Girtler;E. Kneringer;D. Kuhn;G. Rudolph;E. Bouhova;C. Bowdery;D. Clarke;G. Ellis;A. Finch;F. Foster;G. Hughes;R. Jones;M. Pearson;N. Robertson;T. Sloan;M. Smizanska;O. van der Aa;C. Delaere;G. Leibenguth;V. Lemaitre;U. Blumenschein;F. Hölldorfer;K. Jakobs;F. Kayser;A. Müller;B. Renk;H. Sander;S. Schmeling;H. Wachsmuth;C. Zeitnitz;T. Ziegler;A. Bonissent;P. Coyle;C. Curtil;A. Ealet;D. Fouchez;P. Payre;A. Tilquin;F. Ragusa;A. David;H. Dietl;G. Ganis;K. Hüttmann;G. Lütjens;W. Männer;H. Moser;R. Settles;M. Villegas;G. Wolf;J. Boucrot;O. Callot;M. Davier;L. Duflot;J. Grivaz;P. Heusse;A. Jachołkowska;L. Serin;J. Veillet;P. Azzurri;G. Bagliesi;T. Boccali;L. Foà;A. Giammanco;A. Giassi;F. Ligabue;A. Messineo;F. Palla;G. Sanguinetti;A. Sciabà;G. Sguazzoni;P. Spagnolo;R. Tenchini;A. Venturi;P. G. Verdini;O. Awunor;G. Blair;G. Cowan;A. Garcia;M. Green;T. Medcalf;A. Misiejuk;J. Strong;P. Teixeira;R. Clifft;T. Edgecock;P. Norton;I. Tomalin;J. Ward;B. Bloch;D. Boumediene;P. Colas;B. Fabbro;E. Lançon;M. Lemaire;E. Locci;P. Perez;J. Rander;A. Trabelsi;B. Tuchming;B. Vallage;A. Litke;G. Taylor;C. Booth;S. Cartwright;F. Combley;P. Hodgson;M. Lehto;L. Thompson;A. Böhrer;S. Brandt;C. Grupen;J. Hess;A. Ngac;G. Prange;C. Borean;G. Giannini;H. He;J. Putz;J. Rothberg;S. Armstrong;K. Berkelman;K. Cranmer;D. Ferguson;Y. Gao;S. Gonzalez;O. Hayes;H. Hu;S. Jin;J. Kile;P. A. McNamara III;J. Nielsen;Y. Pan;J. V. von Wimmersperg;W. Wiedenmann;J. Wu;S. Wu;X. Wu;G. Zobernig;G. Dissertori;The Aleph Collaboration
The mass of the W boson is determined from the direct reconstruction of W decays in WW→qq̄qq̄ and WW→ℓνqq̄ events in e+e- collisions at LEP. The data sample corresponds to an integrated luminosity of 683 pb-1 collected with the ALEPH detector at centre-of-mass energies up to 209 GeV. To minimise any effect from colour reconnection a new procedure is adopted in which low energy particles are not considered in the mass determination from the qq̄qq̄ channel. The combined result from all channels is $m_{ ext{W}}=80.440 pm0.043{ ext{(stat.)}} pm0.024{ ext{(syst.)}} pm0.009{ ext{(FSI)}} pm0.009{ ext{(LEP)}} ext{GeV/}c^2, $where FSI represents the possible effects of final state interactions in the qq̄qq̄ channel and LEP indicates the uncertainty in the beam energy. From two-parameter fits to the W mass and width, the W width is found to be $Gamma_{ ext{W}} = 2.14 pm0.09{ ext{(stat.)}} pm0.04{ ext{(syst.)}} pm0.05{ ext{(FSI)}} pm0.01{ ext{(LEP)}} ext{GeV}. $