Measurement of the W-pair cross section in $e^+ e^-$ collisions at 172 GeV

6533b83afe1ef96bd12a6f68

RESEARCH PRODUCT

Measurement of the W-pair cross section in $e^+ e^-$ collisions at 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 F Teubert 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 R Hagelberg J.b Hansen J Harvey P Janot B Jost E Kneringer J Knobloch 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 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 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 J Ward 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 Colrain G Crawford A.j Finch F Foster G Hughes R.w.l Jones T Sloan E.p Whelan M.i Williams 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 A Cordier M Davier L Duflot J.-f Grivaz Ph Heusse A Höcker A Jacholkowska M Jacquet D.w Kim F Le Diberder J Lefrançois A.-m Lutz I Nikolic M.-h Schune L Serin S Simion 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 Y Gao 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 W Kozanecki E Lançon M.c Lemaire E Locci P Perez J Rander J.-f Renardy A Rosowsky A Roussarie J.-p Schuller 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 R Boswell C.a.j Brew S Cartwright F Combley M.s Kelly M Lehto W.m Newton J Reeve L.f Thompson K Affholderbach A Böhrer S Brandt G Cowan J Foss C Grupen G Lutters P Saraiva 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 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

subject

Physics Nuclear and High Energy Physics Aleph Gauge boson Particle physics 010308 nuclear & particles physics Branching fraction Cabibbo–Kobayashi–Maskawa matrix Electron–positron annihilation Hadron High Energy Physics::Phenomenology 01 natural sciences Vertex (geometry)ALEPH Experiment Nuclear physics 0103 physical sciences [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]High Energy Physics::Experiment 010306 general physics Nuclear Experiment ALEPH experiment Particle Physics - Experiment

description

The e(+)e(-) --> W+W- cross section is measured in a data sample collected by ALEPH at a mean centre-of-mass energy of 172.09 GeV, corresponding to an integrated luminosity of 10.65 pb(-1). Cross sections are given for the three topologies, fully leptonic, semi-leptonic and hadronic of a W-pair decay. Under the assumption that no other decay modes are present, the W-pair cross section is measured to be 11.7 +/- 1.2(stat.) +/- 0.3(syst.) pb. The existence of the triple gauge boson vertex of the Standard Model is clearly preferred by the data. The decay branching ratio of the W boson into hadrons is measured to be B(W --> hadrons) = 67.7 +/- 3.1(stat.) +/- 0.7(syst.) %, allowing a determination of the CKM matrix element \V-cs\ = 0.98 +/- 0.14(stat.) +/- 0.03(syst.). (C) 1997 Elsevier Science B.V. RI ANTONELLI, ANTONELLA/C-6238-2011; Jones, Roger/H-5578-2011; Passalacqua, Luca/F-5127-2011; Murtas, Fabrizio/B-5729-2012; O'Shea, Val/G-1279-2010; St.Denis, Richard/C-8997-2012; Sanchez, Federico/F-5809-2012; Ferrante, Isidoro/F-1017-2012

year	journal	country	edition	language
1997-01-01

http://hal.in2p3.fr/in2p3-00010776/file/democrite-00010776.pdf