Measurement of the W mass in e+e− collisions at 183 GeV

6533b838fe1ef96bd12a3cd6

RESEARCH PRODUCT

Measurement of the W mass in e+e− collisions at 183 GeV

R Barate D Décamp P Ghez C Goy S Jézéquel J P Lees F Martin E Merle M N Minard B Pietrzyk R Alemany M P Casado M Chmeissani J M Crespo E Fernández M Fernández-bosman L Garrido E Graugès-pous A Juste M Martínez G Merino R Miquel L M Mir P Morawitz A Pacheco I C Park I Riu A Colaleo D Creanza M De Palma G Gelao Giuseppe 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 U Becker G Boix M Cattaneo V Ciulli G Dissertori H Drevermann Roger W Forty M Frank F Gianotti A W Halley J B Hansen J Harvey P Janot B Jost Ivan Lehraus O Leroy C Loomis P Maley P Mato Adolf G Minten A Moutoussi F Ranjard Luigi Rolandi D Rousseau W D Schlatter M Schmitt O Schneider W Tejessy F Teubert I R Tomalin E Tournefier M Vreeswijk Ziad J Ajaltouni F Badaud G Chazelle O Deschamps S Dessagne 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 D Hansen J R Hansen P H Hansen B S Nilsson B Rensch A Wäänänen G Daskalakis A Kyriakis C Markou Errietta Simopoulou Anna Vayaki A Blondel J C Brient F P Machefert A Rougé M Swynghedauw R Tanaka Andrea Valassi H L Videau E Focardi G Parrini K Zachariadou R J Cavanaugh M Corden C H Georgiopoulos A Antonelli G Bencivenni G Bologna F Bossi P Campana G Capon F Cerutti V Chiarella P Laurelli G Mannocchi F Murtas G P Murtas L Passalacqua M Pepé-altarelli M Chalmers L Curtis J G Lynch P Negus V O'shea B Räven C Raine D Smith P Teixeira-dias A S Thompson J J Ward O L Buchmüller S Dhamotharan C Geweniger P Hanke G Hansper V Hepp E E Kluge A L Onk A Putzer G Schmidt J Sommer K Tittel S Werner M Wunsch R Beuselinck David M Binnie W Cameron Peter J Dornan M Girone S M Goodsir N Marinelli E B Martin J Nash J Nowell J K Sedgbeer P Spagnolo E Thomson M D Williams V M Ghete P Girtler E Kneringer D Kuhn G Rudolph A P Betteridge C K Bowdery P G Buck P Colrain G Crawford G Ellis A J Finch F Foster G Hughes R W L Jones N A Robertson M Williams P Van Gemmeren I Giehl F Hölldorfer C Hoffmann K Jakobs K Kleinknecht M Kröcker H A Nürnberger G Quast B Renk E Rohne H G Sander S Schmeling H W Wachsmuth C Zeitnitz T Ziegler Jean-jacques Aubert C Benchouk A Bonissent J Carr P Coyle A Ealet D Fouchez F Motsch P Payre M Talby M Thulasidas A Tilquin M Aleppo M Antonelli F Ragusa R Berlich V Büscher H Dietl G Ganis K Hüttmann G Lütjens C Mannert W Männer H G Moser S Schael Ronald Settles H C J Seywerd H Stenzel W Wiedenmann G Wolf J Boucrot O Callot S Chen M Davier L Duflot J F Grivaz P Heusse A Jacholkowska M Kado D W Kim J Lefrançois L Serin J J Veillet I Videau J B De Vivie De Régie D Zerwas P Azzurri G Bagliesi S Bettarini T Boccali C Bozzi G Calderini R Dell'orso G D'onofrio R Fantechi I Ferrante A Giassi A Gregorio F Ligabue A Lusiani P S Marrocchesi A Messineo Fabrizio Palla G Rizzo G Sanguinetti A Sciabà G Sguazzoni Roberto Tenchini C Vannini A Venturi P G Verdini G A Blair J T Chambers J Coles G D Cowan M G Green D E Hutchcroft L T Jones T Medcalf J A Strong J H Von Wimmersperg-töller David R Botterill R W Clifft T R Edgecock P R Norton J C Thompson A E Wright B Bloch-devaux P Colas B Fabbro G Faïf E Lançon M C Lemaire E Locci P Pérez H Przysiezniak J Rander J F Renardy A Rosowsky A. Trabelsi B Tuchming B Vallage S N Black J H Dann H Y Kim N P Konstantinidis A M Litke M A Mcneil G Taylor C N Booth S L Cartwright F Combley P N Hodgson M S Kelly M H Lehto L F Thompson K Affholderbach A Böhrer S Brandt J Foss Claus Grupen A Misiejuk G Prange U Sieler L Smolik F Stephan G Giannini B Gobbo J Pütz J E Rothberg S R 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 G Mamier P A Mcnamara J M Nachtman J Nielsen W Orejudos Y B Pan Y Saadi I J Scott M Vogt J Walsh Wu Sau Lan X Wu G Zobernig

subject

Physics Nuclear and High Energy Physics Particle physics Aleph [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex]010308 nuclear & particles physics Electron–positron annihilation Hadron Monte Carlo method State (functional analysis)LEP 01 natural sciences Nuclear physics ALEPH Experiment Pair production ALEPH Experiment; LEP; W boson 0103 physical sciences [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]W boson Invariant mass High Energy Physics::Experiment 010306 general physics Nuclear Experiment ALEPH experiment Particle Physics - Experiment

description

Abstract 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 57 pb−1 collected with the ALEPH detector in 1997 at a centre-of-mass energy of 183 GeV. The invariant mass distributions of reweighted Monte Carlo events are fitted separately to the experimental distributions in the q q q q and all lν q q channels to give the following W masses: m W hadronic =80.461±0.177 (stat.) ±0.045 (syst.) ±0.056 (theory) GeV /c 2 , m W semileptonic =80.326±0.184 (stat.) ±0.040 (syst.) GeV /c 2 , where the theory error represents the possible effects of final state interactions. The combination of these two measurements, including the LEP energy calibration uncertainty, gives m W =80.393±0.128 (stat.) ±0.041 (syst.) ±0.028 (theory) ±0.021 (LEP) GeV /c 2 .

year	journal	country	edition	language
1999-01-01

10.1016/s0370-2693(99)00305-6 http://hdl.handle.net/11368/2562522