Measurement of W-pair production in e(+)e(-) collisions at centre-of-mass energies from 183 to 209 GeV
- Authors: SCHAEL S; BARATE R; BRUNELIE; RE R; DE BONIS I; DECAMP D; GOY C; JE; ZE; QUEL S; LEES J-; MARTIN F; MERLE E; MINARD M-; PIETRZYK B; TROCME; B; BRAVO S; CASADO MP; CHMEISSANI M; CRESPO JM; FERNANDEZ E; FERNANDEZ-BOSMAN M; GARRIDO L; MARTINEZ M; PACHECO A; RUIZ H; COLALEO A; CREANZA D; DE FILIPPIS N; DE PALMA M; IASELLI G; MAGGI G; MAGGI M; NUZZO S; RANIERI A; RASO G; RUGGIERI F; SELVAGGI G; SILVESTRIS L; TEMPESTA P; TRICOMI A; ZITO G; HUANG X; LIN J; OUYANG Q; WANG T; XIE Y; XU R; XUE S; ZHANG J; ZHANG L; ZHAO W; ABBANEO D; BARKLOW T; BUCHMU; LLER O; CATTANEO M; CLERBAUX B; DREVERMANN H; FORTY RW; FRANK M; GIANOTTI F; HANSEN JB; HARVEY J; HUTCHCROFT DE; JANOT P; JOST B; KADO M; MATO P; MOUTOUSSI A; RANJARD F; ROLANDI L; SCHLATTER D; SGUAZZONI G; TEUBERT F; VALASSI A; VIDEAU I; BADAUD F; DESSAGNE S; FALVARD A; FAYOLLE D; GAY P; JOUSSET J; MICHEL B; MONTEIL S; PALLIN D; PASCOLO JM; PERRET P; HANSEN JD; HANSEN JR; HANSEN PH; KRAAN AC; NILSSON BS; KYRIAKIS A; MARKOU C; SIMOPOULOU E; VAYAKI A; ZACHARIADOU K; BLONDEL A; BRIENT J-; MACHEFERT F; ROUGE; A; VIDEAU H; CIULLI V; FOCARDI E; PARRINI G; ANTONELLI A; ANTONELLI M; BENCIVENNI G; BOSSI F; CAPON G; CERUTTI F; CHIARELLA V; LAURELLI P; MANNOCCHI G; MURTAS GP; PASSALACQUA L; KENNEDY J; LYNCH JG; NEGUS P; O'SHEA V; THOMPSON AS; WASSERBAECH S; CAVANAUGH R; DHAMOTHARAN S; GEWENIGER C; HANKE P; HEPP V; KLUGE EE; PUTZER A; STENZEL H; TITTEL K; WUNSCH M; BEUSELINCK R; CAMERON W; DAVIES G; DORNAN PJ; GIRONE M; MARINELLI N; NOWELL J; RUTHERFORD SA; SEDGBEER JK; THOMPSON JC; WHITE R; GHETE VM; GIRTLER P; KNERINGER E; KUHN D; RUDOLPH G; BOUHOVA-THACKER E; BOWDERY CK; CLARKE DP; ELLIS G; FINCH AJ; FOSTER F; HUGHES G; JONES RWL; PEARSON MR; ROBERTSON NA; SMIZANSKA M; VAN DER AA O; DELAERE C; LEIBENGUTH G; LEMAITRE V; BLUMENSCHEIN U; HO; LLDORFER F; JAKOBS K; KAYSER F; KLEINKNECHT K; MU; LLER A-; RENK B; SANDER H-; SCHMELING S; WACHSMUTH H; ZEITNITZ C; ZIEGLER T; BONISSENT A; COYLE P; CURTIL C; EALET A; FOUCHEZ D; PAYRE P; TILQUIN A
- Publication year: 2004
- Type: Articolo in rivista (Articolo in rivista)
- OA Link: http://hdl.handle.net/10447/18414
Abstract
The W+W- production cross section is measured from a data sample corresponding to a total integrated luminosity of 683 pb(-1), collected by the ALEPH experiment at LEP at centre-of-mass energies from 183 to 209 GeV. Individual cross sections for the different topologies arising from W decays into leptons or hadrons, as well as the total W-pair cross section are given at eight centre-of-mass energies. The results are found to be in agreement with recently developed Standard Model calculations at the one percent level. The hadronic branching fraction of the W boson is measured to be B(W --> q(q) over bar) = 67.13 +/- 0.37 (stat.) +/- 0.15 (syst.)%, from which the CKM matrix element \V-cs\ is determined to be 0.958 +/- 0.017 (stat.) +/- 0.008 (syst.).