6533b859fe1ef96bd12b796a

RESEARCH PRODUCT

A measurement of Rb using mutually exclusive tags

R BarateD BuskulicD DecampP GhezC GoyJp LeesA LucotteMn MinardJy NiefB PietrzykMp CasadoM ChmeissaniP ComasJm CrespoM DelfinoE FernandezM FernandezbosmanL GarridoA JusteM MartinezR MiquelLm MirS OrteuC PadillaIc ParkA PascualJa PerlasI RiuF SanchezF TeubertA ColaleoDonato Maria CreanzaM DepalmaG GelaoGiuseppe IaselliGiorgio Pietro MaggiM MaggiN MarinelliS NuzzoA RanieriG RasoF RuggieriG SelvaggiL SilvestrisP TempestaA TricomiG ZitoX HuangJ LinQ OuyangT WangY XieR XuS XueJ ZhangL ZhangW ZhaoD AbbaneoR AlemanyU BeckerAo BazarkoP BrightthomasM CattaneoF CeruttiH DrevermannRw FortyM FrankR HagelbergJ HarveyP JanotB JostE KneringerJ KnoblochI LehrausG LuttersP MatoA MintenL MonetaA PachecoJf PusztaszeriF RanjardP RensingP RizzoG RizzoL RolandiD SchlatterM SchmittO SchneiderW TejessyIr TomalinH WachsmuthA WagnerZ AjaltouniA BarresC BoyerA FalvardC FerdiP GayC GuicheneyP HenrardJ JoussetB MichelS MonteilJc MontretD PallinP PerretF PodlyskiJ ProriolP RosnetJm RossignolT FearnleyJb HansenJd HansenJr HansenPh HansenBs NilssonB RenschA WaananenG DaskalakisA KyriakisC MarkouE SimopoulouI SiotisA VayakiA BlondelG BonneaudJc BrientP BourdonA RougeM RumpfA ValassiM VerderiH VideauDj CandlinMi ParsonsE FocardiG ParriniK ZachariadouM CordenC GeorgiopoulosDe JaffeA AntonelliG BencivenniG BolognaF BossiP CampanaG CaponD CasperV ChiarellaG FeliciP LaurelliG MannocchiF MurtasGp MurtasL PassalacquaM PepealtarelliL CurtisSj DorrisAw HalleyIg KnowlesJg LynchV OsheaC RaineJm ScarrK SmithP TeixeiradiasAs ThompsonE ThomsonF ThomsonRm TurnbullC GewenigerG GraefeP HankeG HansperV HeppEe KlugeA PutzerM SchmidtJ SommerK TittelS WernerM WunschR BeuselinckDm BinnieW CameronPj DornanM GironeS GoodsirEb MartinA MoutoussiJ NashJk SedgbeerAm StaceyMd WilliamsG DissertoriVm GheteP GirtlerD KuhnG RudolphAp BetteridgeCk BowderyP ColrainG CrawfordAj FinchF FosterG HughesT SloanMi WilliamsA GallaI GiehlAm GreeneC HoffmannK JakobsK KleinknechtG QuastB RenkE RohneHg SanderP VangemmerenC ZeitnitzJj AubertC BenchoukA BonissentG BujosaD CalvetJ CarrP CoyleC DiaconuF EtienneN KonstantinidisO LeroyF MotschP PayreD RousseauM TalbyA SadoukiM ThulasidasK TrabelsiM AleppoF RagusaR BerlichW BlumD BrownV BuscherH DietlF DydakG GanisC GotzheinH KrohaG LutjensG LutzW MannerHg MoserR RichterA RosadoschlosserS SchaelR SettlesH SeywerdR StdenisH StenzelW WiedenmannG WolfJ BoucrotO CallotS ChenY ChoiA CordierM DavierL DuflotJf GrivazP HeusseA HockerA JacholkowskaM JacquetDw KimF LediberderJ LefrancoisAm LutzI NikolicMh SchuneS SimionE TournefierJj VeilletI VideauD ZerwasP AzzurriG BagliesiG BatignaniS BettariniC BozziG CalderiniM CarpinelliMa CiocciV CiulliR DellorsoR FantechiI FerranteL FoaF FortiA GiassiMa GiorgiA GregorioF LigabueA LusianiPs MarrocchesiA MessineoF PallaG SanguinettiA SciabaP SpagnoloJ SteinbergerR TenchiniG TonelliC VanniniA VenturiPg VerdiniGa BlairLm BryantJt ChambersY GaoMg GreenT MedcalfP PerrodoJa StrongJh VonwimmerspergtoellerDr BotterillRw ClifftTr EdgecockS HaywoodP MaleyPr NortonJc ThompsonAe WrightB BlochdevauxP ColasS EmeryW KozaneckiE LanconMc LemaireE LocciP PerezJ RanderJf RenardyA RoussarieJp SchullerJ SchwindlingA. TrabelsiB VallageSn BlackJh DannRp JohnsonHy KimAm LitkeMa McneilG TaylorCn BoothR BoswellCaj BrewS CartwrightF CombleyMs KellyM LehtoWm NewtonJ ReeveLf ThompsonA BohrerS BrandtG CowanC GrupenP SaraivaL SmolikF StephanM ApollonioL BosisioR DellamarinaG GianniniB GobboG MusolinoJ RothbergS WasserbaechSr ArmstrongE CharlesP ElmerDps FergusonYs GaoS GonzalezTc GreeningOj HayesH HuS JinPa McnamaraJm NachtmanJ NielsenW OrejudosYb PanY SaadiIj ScottJ WalshSl WuX WuJm YamartinoG. Zobernig

subject

QuarkPhysicsNuclear and High Energy PhysicsAlephParticle physics010308 nuclear & particles physicsPhysicsElectroweak interactionMutually exclusive events01 natural sciencesMeasure (mathematics)ALEPH Experiment0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]010306 general physicsParticle Physics - Experiment

description

A measurement of R-b using five mutually exclusive hemisphere tags has been performed by ALEPH using the full LEP1 statistics. Three tags are designed to select the decay of the Z(0) to b quarks, while the remaining two select Z(0) decays to c and light quarks, and are used to measure the tagging efficiencies. The result, R-b = 0.2159 +/- 0.0009(stat) +/-0.0011(syst), is in agreement with the electroweak theory prediction of 0.2158 +/- 0.0003. (C) 1997 Published by Elsevier Science B.V. RI ANTONELLI, ANTONELLA/C-6238-2011; Passalacqua, Luca/F-5127-2011; Murtas, Fabrizio/B-5729-2012; St.Denis, Richard/C-8997-2012; Forti, Francesco/H-3035-2011; Ferrante, Isidoro/F-1017-2012

10.1016/s0370-2693(97)00407-3http://hdl.handle.net/11368/2563024