6533b7defe1ef96bd1276552

RESEARCH PRODUCT

A study of single W production in e+e− collisions at –183 GeV

R. BarateD. DecampP. GhezC. GoyS. JezequelJ.-p. LeesF. MartinE. MerleM.-n. MinardB. PietrzykH. PrzysiezniakR. AlemanyM.p. CasadoM. ChmeissaniJ.m. CrespoE. FernandezM. Fernandez-bosmanLl. GarridoE. GraugèsA. JusteM. MartinezG. MerinoR. MiquelLl.m. MirP. MorawitzA. PachecoI.c. ParkI. RiuA. ColaleoD. CreanzaM. De PalmaG. IaselliG. MaggiM. MaggiS. NuzzoA. RanieriG. RasoF. RuggieriG. SelvaggiL. SilvestrisP. TempestaA. TricomiG. ZitoX. HuangJ. LinQ. OuyangT. WangY. XieR. XuS. XueJ. ZhangL. ZhangW. ZhaoD. AbbaneoU. BeckerG. BoixM. CattaneoF. CeruttiV. CiulliG. DissertoriH. DrevermannR.w. FortyM. FrankF. GianottiT.c. GreeningA.w. HalleyJ.b. HansenJ. HarveyP. JanotB. JostI. LehrausO. LeroyC. LoomisP. MaleyP. MatoA. MintenA. MoutoussiF. RanjardL. RolandiD. SchlatterM. SchmittO. SchneiderP. SpagnoloW. TejessyF. TeubertI.r. TomalinE. TournefierA.e. WrightZ. AjaltouniF. BadaudG. ChazelleO. DeschampsS. DessagneA. FalvardC. FerdiP. GayC. GuicheneyP. HenrardJ. JoussetB. MichelS. MonteilJ-c. MontretD. PallinP. PerretF. PodlyskiJ.d. HansenJ.r. HansenP.h. HansenB.s. NilssonB. RenschA. WäänänenG. DaskalakisA. KyriakisC. MarkouE. SimopoulouA. VayakiA. BlondelJ.-c. BrientF. MachefertA. RougéM. SwynghedauwR. TanakaA. ValassiH. VideauE. FocardiG. ParriniK. ZachariadouR. CavanaughM. CordenC. GeorgiopoulosA. AntonelliG. BencivenniG. BolognaF. BossiP. CampanaG. CaponV. ChiarellaP. LaurelliG. MannocchiF. MurtasG.p. MurtasL. PassalacquaM. Pepe-altarelliM. ChalmersL. CurtisJ.g. LynchP. NegusV. O'sheaB. RaevenC. RaineD. SmithP. Teixeira-diasA.s. ThompsonJ.j. WardO. BuchmüllerS. DhamotharanC. GewenigerP. HankeG. HansperV. HeppE.e. KlugeA. PutzerJ. SommerK. TittelS. WernerM. WunschR. BeuselinckD.m. BinnieW. CameronP.j. DornanM. GironeS. GoodsirN. MarinelliE.b. MartinJ. NashJ. NowellA. SciabàJ.k. SedgbeerE. ThomsonM.d. WilliamsV.m. GheteP. GirtlerE. KneringerD. KuhnG. RudolphC.k. BowderyP.g. BuckG. EllisA.j. FinchF. FosterG. HughesR.w.l. JonesN.a. RobertsonM. SmizanskaM.i. WilliamsI. GiehlF. HölldorferK. JakobsK. KleinknechtM. KröckerA.-s. MüllerH.-a. NürnbergerG. QuastB. RenkE. RohneH.-g. SanderS. SchmelingH. WachsmuthC. ZeitnitzT. ZieglerJ.j. AubertC. BenchoukA. BonissentJ. CarrP. CoyleA. EaletD. FouchezF. MotschP. PayreD. RousseauM. TalbyM. ThulasidasA. TilquinM. AleppoM. AntonelliF. RagusaV. BüscherH. DietlG. GanisK. HüttmannG. LütjensC. MannertW. MännerH.-g. MoserS. SchaelR. SettlesH. SeywerdH. StenzelW. WiedenmannG. WolfP. AzzurriJ. BoucrotO. CallotS. ChenM. DavierL. DuflotJ.-f. GrivazPh. HeusseA. JacholkowskaM. KadoJ. LefrançoisL. SerinJ.-j. VeilletI. VideauJ.-b. De Vivie De RégieD. ZerwasG. BagliesiS. BettariniT. BoccaliC. BozziG. CalderiniR. Dell'orsoI. FerranteA. GiassiA. GregorioF. LigabueA. LusianiP.s. MarrocchesiA. MessineoF. PallaG. RizzoG. SanguinettiG. SguazzoniR. TenchiniC. VanniniA. VenturiP.g. VerdiniG.a. BlairJ. ColesG. CowanM.g. GreenD.e. HutchcroftL.t. JonesT. MedcalfJ.a. StrongJ.h. Von Wimmersperg-toellerD.r. BotterillR.w. ClifftT.r. EdgecockP.r. NortonJ.c. ThompsonB. Bloch-devauxP. ColasB. FabbroG. FaïfE. LançonM.-c. LemaireE. LocciP. PerezJ. RanderJ.-f. RenardyA. RosowskyA. TrabelsiB. TuchmingB. VallageS.n. BlackJ.h. DannH.y. KimN. KonstantinidisA.m. LitkeM.a. McneilG. TaylorC.n. BoothS. CartwrightF. CombleyP.n. HodgsonM.s. KellyM. LehtoL.f. ThompsonK. AffholderbachA. BöhrerS. BrandtC. GrupenJ. HessA. MisiejukG. PrangeU. SielerG. GianniniB. GobboJ. PutzJ. RothbergS. WasserbaechR.w. WilliamsS.r. ArmstrongP. ElmerD.p.s. FergusonY. GaoS. GonzálezO.j. HayesH. HuS. JinP.a. Mcnamara IiiJ. NielsenW. OrejudosY.b. PanY. SaadiI.j. ScottJ. WalshSau Lan WuX. WuG. Zobernig

subject

PhysicsNuclear and High Energy PhysicsParticle physics010308 nuclear & particles physicsBranching fractionElectron–positron annihilationSupersymmetry01 natural sciencesStandard ModelNuclear physicsPair production0103 physical sciencesHigh Energy Physics::ExperimentProduction (computer science)010306 general physics

description

Abstract Single W production is studied in the data recorded with the ALEPH detector at LEP at centre-of-mass energies between 161 and 183 GeV. The cross section is measured to be σW=0.41±0.17(stat.)±0.04(syst.) pb at 183 GeV, consistent with the Standard Model expectation. Limits on non-standard WWγ couplings are deduced as −1.6 γ (λ γ =0) and −1.6 γ (κ γ =1) at 95% C.L. A search for effectively invisible decays of the W boson in W pair production is performed, leading to an upper limit on the branching ratio of 1.3% ( Γ inv =27 MeV ) at 95% C.L.

https://doi.org/10.1016/s0370-2693(99)00899-0