Measurement of the W boson Mass and Width in $e^{+}e^{-}$ Collisions at LEP

6533b838fe1ef96bd12a528a

RESEARCH PRODUCT

Measurement of the W boson Mass and Width in $e^{+}e^{-}$ Collisions at LEP

S Schael R Barate R Bruneliere I De Bonis D Decamp C Goy S Jezequel Jp Lees F Martin E Merle Mn Minard B Pietrzyk B Trocme S Bravo Mp Casado M Chmeissani Jm Crespo E Fernandez M Fernandez Bosman 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 Alessia Rita Tricomi G Zito X Huang J Lin Q Ouyang T Wang Y Xie R Xu S Xue J Zhang L Zhang W Zha D Abbaneo T Barklow O Buchmuller M Cattaneo B Clerbaux H Drevermann Rw Forty M Frank F Gianotti Jb Hansen J Harvey De 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 Jm Pascolo P Perret Jd Hansen Jr Hansen Ph Hansen Ac Kraan Bs Nilsson A Kyriakis C Markou E Simopoulou A Vayaki K Zachariadou A Blondel Jc Brient F Machefert A Rouge 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 Gp Murtas L Passalacqua J Kennedy Jg Lynch P Negus V O'shea As Thompson S Wasserbaech R Cavanaugh S Dhamotharan C Geweniger P Hanke V Hepp Ee Kluge A Putzer H Stenzel K Tittel M Wunsch R Beuselinck W Cameron G Davies Pj Dornan M Girone N Marinelli J Nowell Sa Rutherford Jk Sedgbeer Jc Thompson R White Vm Ghete P Girtler E Kneringer D Kuhn G Rudolph E Bouhova Thacker Ck Bowdery Dp Clarke G Ellis Aj Finch F Foster G Hughes Rwl Jones Mr Pearson Na Robertson T Sloan M Smizanska O Van Der Aa C Delaere G Leibenguth V Lemaitre U Blumenschein F Holldorfer K Jakobs F Kayser As Muller B Renk Hg 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 Huttmann G Lutjens W Manner Hg Moser R Settles M Villegas G Wolf J Boucrot O Callot M Davier L Duflot Jf Grivaz P Heusse A Jacholkowska L Serin Jj Veillet P Azzurri G Bagliesi T Boccali L Foa A Giammanco A Giassi F Ligabue A Messineo F Palla G Sanguinetti A Sciaba G Sguazzoni P Spagnolo R Tenchini A Venturi Pg Verdini O Awunor Ga Blair G Cowan A Garcia Bellido Mg Green T Medcalf A Misiejuk Ja Strong P Teixeira Dias Rw Clifft Tr Edgecock Pr Norton Ir Tomalin Jj Ward B Bloch Devaux D Boumediene P Colas B Fabbro E Lancon Mc Lemaire E Locci P Perez J Rander A. Trabelsi B Tuchming B Vallage Am Litke G Taylor Cn Booth S Cartwright F Combley Pn Hodgson M Lehto Lf Thompson A Bohrer S Brandt C Grupen J Hess A Ngac G Prange C Borean G Giannini H He J Putz J Rothberg Sr Armstrong K Berkelman K Cranmer Dps Ferguson Y Gao S Gonzalez Oj Hayes H Hu S Jin J Kile Pa Mcnamara J Nielsen Yb Pan Von Wimmersperg Toeller Jh W Wiedenmann J Wu Sl Wu X Wu G Zobernig G. Dissertori

subject

Particle physics Physics and Astronomy (miscellaneous)Electron–positron annihilation FOS: Physical sciences Elementary particle 01 natural sciences Systematic Uncertainty High Energy Physics - Experiment Nuclear physics Particle decay High Energy Physics - Experiment (hep-ex)0103 physical sciences [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Invariant mass Invariant Mass 010306 general physics Nuclear Experiment Engineering (miscellaneous)Monte Carlo Boson Physics Muon Annihilation 010308 nuclear & particles physics High Energy Physics::Phenomenology Pair production Boson Mass Time Projection Chamber High Energy Physics::Experiment Astrophysics::Earth and Planetary Astrophysics Particle Physics - Experiment

description

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 mW=80.440±0.043(stat.)±0.024(syst.)±0.009(FSI)±0.009(LEP)GeV/c2,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 ΓW=2.14±0.09(stat.)±0.04(syst.)±0.05(FSI)±0.01(LEP)GeV.

year	journal	country	edition	language
2006-05-04

10.1140/epjc/s2006-02576-8 https://hal.in2p3.fr/in2p3-00085116