6533b7cefe1ef96bd1257a3b

RESEARCH PRODUCT

Measurement of W-pair production in $e^{+}e^{-}$ collisions at centre-of-mass energies from 183 to 209 GeV

A. HeisterS. SchaelR. BarateR. BruneliereI. De BonisD. DecampC. GoyS. JezequelJ.p. LeesF. MartinE. MerleM.n. MinardB. PietrzykB. TrocmeS. BravoM.p. CasadoM. ChmeissaniJ.m. CrespoE. FernandezM. Fernandez-bosmanLl. GarridoM. MartinezA. PachecoH. RuizA. ColaleoD. CreanzaN. De FilippisM. De PalmaG. IaselliG. MaggiM. MaggiS. NuzzoA. RanieriG. RasoF. RuggieriG. SelvaggiL. SilvestrisP. TempestaA. TricomiG. ZitoX. HuangJiali LinQ. OuyangT. WangY. XieR. XuS. XueJ. ZhangL. ZhangW. ZhaoD. AbbaneoT. BarklowO. BuchmullerM. CattaneoB. ClerbauxH. DrevermannR.w. FortyM. FrankF. GianottiJ.b. HansenJ. HarveyD.e. HutchcroftP. JanotB. JostM. KadoP. MatoA. MoutoussiF. RanjardL. RolandiD. SchlatterG. SguazzoniW. TejessyF. TeubertA. ValassiI. VideauF. BadaudS. DessagneAlain FalvardD. FayollePascal GayJ. JoussetB. MichelS. MonteilD. PallinJ M. PascoloPascal PerretJ.d. HansenJ.r. HansenP.h. HansenA.c. KraanB.s. NilssonA. KyriakisC. MarkouE. SimopoulouA. VayakiK. ZachariadouA. BlondelJ-c. BrientF. MachefertA. RougeM. SwynghedauwR. TanakaH. VideauV. CiulliE. FocardiG. ParriniA. AntonelliM. AntonelliG. BencivenniF. BossiG. CaponF. CeruttiV. ChiarellaP. LaurelliG. MannocchiG.p. MurtasL. PassalacquaJ. KennedyJ.g. LynchP. NegusV. O'sheaA.s. ThompsonS. WasserbaechR. CavanaughS. DhamotharanC. GewenigerP. HankeV. HeppE.e. KlugeA. PutzerH. StenzelK. TittelM. WunschR. BeuselinckW. CameronG. DaviesP.j. DornanM. GironeR.d. HillN. MarinelliJ. NowellS.a. RutherfordJ.k. SedgbeerJ.c. ThompsonR. WhiteV.m. GheteP. GirtlerE. KneringerD. KuhnG. RudolphE. Bouhova-thackerC.k. BowderyD.p. ClarkeG. EllisA.j. FinchF. FosterG. HughesR.w.l. JonesM.r. PearsonN.a. RobertsonM. SmizanskaO. Van Der AaC. DelaereG. LeibenguthV. LemaitreU. BlumenscheinF. HolldorferK. JakobsF. KayserK. KleinknechtA.s. MullerB. RenkH.g. SanderS. SchmelingH. WachsmuthC. ZeitnitzT. ZieglerA. BonissentP. CoyleC. CurtilA. EaletD. FouchezP. PayreA. TilquinF. RagusaA. DavidH. DietlG. GanisK. HuttmannG. LutjensW. MannerH.g. MoserR. SettlesM. VillegasG. WolfJ. BoucrotO. CallotM. DavierL. DuflotJ-f. GrivazPh. HeusseA. JacholkowskaL. SerinJ-j. VeilletP. AzzurriG. BagliesiT. BoccaliL. FoaA. GiammancoA. GiassiF. LigabueA. MessineoF. PallaG. SanguinettiA. SciabaP. SpagnoloR. TenchiniA. VenturiP.g. VerdiniO. AwunorG.a. BlairG. CowanA. Garcia-bellidoM.g. GreenL.t. JonesT. MedcalfA. MisiejukJ.a. StrongP. Teixeira-diasR.w. ClifftT.r. EdgecockP.r. NortonI.r. TomalinJ.j. WardB. Bloch-devauxD. BoumedieneP. ColasB. FabbroE. LanconM-c. LemaireE. LocciP. PerezJ. RanderB. TuchmingB. VallageN. KonstantinidisA.m. LitkeG. TaylorC.n. BoothS. CartwrightF. CombleyP.n. HodgsonM. LehtoL.f. ThompsonA. BohrerS. BrandtC. GrupenJ. HessA. NgacG. PrangeC. BoreanG. GianniniH. HeJ. PutzJ. RothbergS.r. ArmstrongK. BerkelmanK. CranmerD.p.s. FergusonY. GaoS. GonzalezO.j. HayesH. HuS. JinJ. KileP.a. Mcnamara IiiJ. NielsenY.b. PanJ.h. Von Wimmersperg-toellerW. WiedenmannJ. WuSau. Lan WuX. WuG. ZobernigG. Dissertori

subject

PhysicsParticle physicsPhysics and Astronomy (miscellaneous)010308 nuclear & particles physicsCabibbo–Kobayashi–Maskawa matrixBranching fractionElectron–positron annihilationHadronHigh Energy Physics::Phenomenology7. Clean energy01 natural sciencesStandard ModelNuclear physicsPair productionbosons measuring instruments anomalous quartic0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]High Energy Physics::Experiment010306 general physicsNuclear ExperimentEngineering (miscellaneous)ALEPH experimentParticle Physics - ExperimentLepton

description

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→qq¯) = 67.13 ± 0.37(stat.) ± 0.15(syst.)%, from which the CKM matrix element |\ensuremathVcs| is determined to be 0.958 ± 0.017(stat.) ± 0.008(syst.) ISSN:1434-6044 ISSN:1434-6052

10.1140/epjc/s2004-02048-3https://hal.in2p3.fr/in2p3-00021734