6533b822fe1ef96bd127d8e4
RESEARCH PRODUCT
Measurement of the ratio using event shape variables
D. BuskulicI. De BonisD. DecampP. GhezC. GoyJ. P. LeesM. N. MinardB. PietrzykF. AriztizabalP. ComasJ. M. CrespoM. DelfinoI. EfthymiopoulosE. FernandezM. Fernandez BosmanV. GaitanL.l. GarridoT. MattisonA. PachecoC. PadillaA. PascualD. CreanzaM. De PalmaA. FarillaG. IaselliG. MaggiS. NataliS. NuzzoM. QuattrominiA. RanieriG. RasoF. RomanoF. RuggieriG. SelvaggiL. SilvestrisP. TempestaG. ZitoY. ChaiH. HuD. HuangX. HuangJ. LinT. WangY. XieD. XieD. XuR. XuJ. ZhangL. ZhangW. ZhaoE. BlucherG. BonviciniJ. BoudreauD. CasperH. DrevermannR. W. FortyG. GanisC. GayR. HagelbergJ. HarveyJ. HilgartR. JacobsenB. JostJ. KnoblochI. LehrausT. LohseM. MaggiC. MarkouM. MartinezP. MatoH. MeinhardA. MintenA. MiottoR. MiquelH. G. MoserP. PalazziJ. R. PaterJ. A. PerlasJ. F. PusztaszeriF. RanjardG. RedlingerL. RolandiJ. RothbergT. RuanM. SaichD. SchlatterM. SchmellingF. SefkowW. TejessyI. R. TomalinR. VeenhofH. WachsmuthS. WasserbaechW. WiedenmannT. WildishW. WitzelingJ. WotschackZ. AjaltouniF. BadaudM. Bardadin OtwinowskaR. El FellousA. FalvardP. GayC. GuicheneyP. HenrardJ. JoussetB. MichelJ. C. MontretD. PallinP. PerretF. PodlyskiJ. ProriolF. PrulhièreF. SaadiT. FearnleyJ. B. HansenJ. D. HansenJ. R. HansenP. H. HansenR. MøllerudB. S. NilssonA. KyriakisE. SimopoulouI. SiotisA. VayakiK. ZachariadouJ. BadierA. BlondelG. BonneaudJ. C. BrientG. FouqueS. OrteuA. RougéM. RumpfR. TanakaM. VerderiH. VideauD. J. CandlinM. I. ParsonsE. VeitchE. FocardiL. MonetaG. ParriniM. CordenC. GeorgiopoulosM. IkedaD. LevinthalA. AntonelliR. BaldiniG. BencivenniG. BolognaF. BossiP. CampanaG. CaponF. CeruttiV. ChiarellaB. D'ettorre PiazzoliG. FeliciP. LaurelliG. MannocchiF. MurtasG. P. MurtasL. PassalacquaM. Pepe AltarelliP. PicchiP. ColrainI. Ten HaveJ. G. LynchW. MaitlandW. T. MortonC. RaineP. ReevesJ. M. ScarrK. SmithM. G. SmithA. S. ThompsonR. M. TurnbullB. BrandlO. BraunC. GewenigerP. HankeV. HeppE. E. KlugeY. MaumaryA. PutzerB. RenschA. StahlK. TittelM. WunschR. BeuselinckD. M. BinnieW. CameronM. CattaneoD. J. CollingP. J. DornanA. M. GreeneJ. F. HassardN. M. LieskeA. MoutoussiJ. NashS. PattonD. G. PayneM. J. PhillipsG. San MartinJ. K. SedgbeerA. G. WrightP. GirtlerD. KuhnG. RudolphR. VoglC. K. BowderyT. J. BrodbeckA. J. FinchF. FosterG. HughesD. JacksonN. R. KeemerM. NuttallA. PatelT. SloanS. W. SnowE. P. WhelanK. KleinknechtJ. RaabB. RenkH. G. SanderH. SchmidtF. SteegS. M. WaltherR. WankeB. WolfA. M. BencheikhC. BenchoukA. BonissentJ. CarrP. CoyleJ. DrinkardF. EtienneD. NicodS. PapalexiouP. PayreL. RoosD. RousseauP. SchwemlingM. TalbyS. AdlungR. AssmannC. BauerW. BlumD. BrownP. CattaneoB. DehningH. DietlF. DydakM. FrankA. W. HalleyK. JakobsJ. LauberG. LütjensG. LutzW. MännerR. RichterJ. SchröderA. S. SchwarzR. SettlesH. SeywerdU. StierlinU. StieglerR. S.t. DenisG. WolfR. AlemanyJ. BoucrotO. CallotA. CordierM. DavierL. DuflotJ. F. GrivazP.h. HeusseD. E. JaffeP. JanotD. W. KimF. Le DiberderJ. LefrançoisA. M. LutzM. H. SchuneJ. J. VeilletI. VideauZ. ZhangD. AbbaneoG. BagliesiG. BatignaniU. BottigliC. BozziG. CalderiniM. CarpinelliM. A. CiocciR. Dell'orsoI. FerranteF. FidecaroL. FoàF. FortiA. GiassiM. A. GiorgiA. GregorioF. LigabueA. LusianiE. B. MannelliP. S. MarrocchesiA. MessineoF. PallaG. RizzoG. SanguinettiP. SpagnoloJ. SteinbergerR. TenchiniG. TonelliG. TriggianiC. VanniniA. VenturiP. G. VerdiniJ. WalshA. P. BetteridgeY. GaoM. G. GreenP. V. MarchL.l. M. MirT. MedcalfI. S. QuaziJ. A. StrongL. R. WestD. R. BotterillR. W. ClifftT. R. EdgecockS. HaywoodP. R. NortonJ. C. ThompsonB. Bloch DevauxP. ColasH. DuarteS. EmeryW. KozaneckiE. LançonM. C. LemaireE. LocciB. MarxP. PerezJ. RanderJ. F. RenardyA. RosowskyA. RoussarieJ. P. SchullerJ. SchwindlingD. Si MohandB. VallageR. P. JohnsonA. M. LitkeG. TaylorJ. WearJ. G. AshmanW. BabbageC. N. BoothC. ButtarS. CartwrightF. CombleyI. DawsonL. F. ThompsonE. BarberioA. BöhrerS. BrandtG. CowanC. GrupenG. LuttersF. RiveraU. SchäferL. SmolikL. BosisioR. Della MarinaG. GianniniB. GobboF. RagusaL. BellantoniW. ChenJ. S. ConwayZ. FengD. P. S. FergusonY. S. GaoJ. GrahlJ. L. HartonO. J. HayesJ. M. NachtmanY. B. PanY. SaadiM. SchmittI. ScottV. SharmaZ. H. ShiJ. D. TurkA. M. WalshF. V. WeberSau Lan WuX. WuM. ZhengG. ZobernigBenedetto D'ettorre Piazzolisubject
PhysicsNuclear and High Energy PhysicsParticle physics010308 nuclear & particles physicsBranching fractionHadronElementary particle01 natural sciences0103 physical sciencesTransverse momentumHigh Energy Physics::ExperimentNuclear Experiment010306 general physicsALEPH experimentLeptonBar (unit)Event (probability theory)description
Abstract The branching fraction of Z → b b relative to all hadronic decays of the Z has been measured using event shape variables to preferentially select Z → b b events. The method chosen applies a combination of shape discriminators and the selection of high transverse momentum leptons to event hemispheres. From a sample of 440 000 hadronic Z decays collected with the ALEPH detector at LEP, the ration Γ b b Γ had = 0.228±0.005( stat. )±0.005( syst. ) is measured.
year | journal | country | edition | language |
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1993-09-01 | Physics Letters B |