6533b825fe1ef96bd12827ec
RESEARCH PRODUCT
UPDATE OF ELECTROWEAK PARAMETERS FROM Z DECAYS
Damir BuskulicD DécampC GoyJ P LeesM N MinardB MoursR AlemanyF AriztizabalP ComasJ M CrespoM C DelfinoE FernándezM Fernández-bosmanV GaitanL GarridoT S MattisonA PachecoC PadillaA PascualD CreanzaM De PalmaA FarillaGiuseppe IaselliG MaggiM MaggiS NataliS NuzzoM QuattrominiA RanieriG RasoF RomanoF RuggieriG SelvaggiL SilvestrisP TempestaG ZitoY ChaiH HuD HuangX HuangJ LinT WangY XieD XuR XuJ ZhangL ZhangW ZhaoL A T BauerdickE BlucherG BonviciniJ BoudreauDavid William CasperH DrevermannRoger W FortyG GanisC GayR HagelbergJ HarveyS HaywoodJ M HilgartR JacobsenB JostJ KnoblochIvan LehrausT LohseA LusianiM MartínezP MatoH MeinhardAdolf G MintenA MiottoR MiquelH G MoserP PalazziJ A PerlasJ F PusztaszeriF RanjardG RedlingerLuigi RolandiJ E RothbergT RuanM SaichW D SchlatterM SchmellingF SefkowW TejessyH W WachsmuthW WiedenmannT WildishW WitzelingJ WotschackZiad J AjaltouniF BadaudMaria Bardadin-otwinowskaR El-fellousA FalvardP GayC GuicheneyP HenrardJ JoussetB MichelJ C MontretD PallinP PerretB PietrzykJ ProriolF PrulhièreF SaadiTom FearnleyJ D HansenJ R HansenP H HansenR MøllerudB S NilssonI EfthymiopoulosA KyriakisErrietta SimopoulouAnna VayakiK ZachariadouJ BadierA BlondelG R BonneaudJ C BrientG FouqueS OrteuA RougéM RumpfR TanakaM VerderiH L VideauD J CandlinM I ParsonsE VeitchL MonetaG ParriniM CordenC H GeorgiopoulosM IkedaJ E LannuttiD A LevinthalMichael E MermikidesL SawyerS R WasserbaechA AntonelliR BaldiniG BencivenniG BolognaF BossiP CampanaG CaponF CeruttiV ChiarellaB D'ettorre-piazzoliG FeliciP LaurelliG MannocchiF MurtasG P MurtasL PassalacquaM Pepé-altarelliP PicchiP ColrainI Ten HaveJ G LynchW J MaitlandW T MortonC RaineJ M ScarrK SmithM G SmithA S ThompsonR M TurnbullB BrandlO BraunC GewenigerP HankeV HeppE E KlugeY MaumaryA PutzerB RenschA StahlK TittelM WunschA T BelkR BeuselinckDavid M BinnieW CameronM CattaneoD J CollingPeter J DornanS DugeayA M GreeneJ F HassardN M LieskeJ NashS J PattonD G PayneM J PhillipsJ K SedgbeerI R TomalinA G WrightP GirtlerE KneringerD KuhnG RudolphC K BowderyT J BrodbeckA J FinchF FosterG HughesD JacksonN R KeemerM NuttallA D PatelTerence SloanS W SnowE P WhelanK KleinknechtJ RaabB RenkH G SanderH SchmidtF SteegS M WaltherR WankeB WolfJean-jacques AubertA M BencheikhC BenchoukA BonissentJ CarrP CoyleJ DrinkardF EtienneD NicodS PapalexiouP PayreL RoosD RousseauP SchwemlingM TalbyS AdlungR W AssmannC BauerWalter BlumD BrownPaolo Walter CattaneoBernd DehningH DietlFriedrich DydakM FrankA W HalleyJ LauberG LütjensGerhard LutzW MännerR H RichterHerbert RotscheidtJ SchröderA S SchwarzRonald SettlesH C J SeywerdU StierlinU StieglerR Saint-denisG WolfJ BoucrotO CallotA CordierM DavierL DuflotJ F GrivazP HeusseD E JaffeP JanotD W KimF R Le DiberderJ LefrançoisA M LutzM H SchuneJ J VeilletI VideauZ ZhangD AbbaneoG BagliesiG BatignaniL BosisioU BottigliC BozziG CalderiniM CarpinelliM A CiocciR Dell'orsoI FerranteF FidecaroL FoàE FocardiF FortiA GiassiM A GiorgiA GregorioF LigabueE B MannelliP S MarrocchesiA MessineoFabrizio PallaG RizzoG SanguinettiP SpagnoloJack SteinbergerRoberto TenchiniG TonelliG TriggianiC VanniniA VenturiP G VerdiniJ WalshA P BetteridgeJ M CarterM G GreenP V MarchL M MirT MedcalfI S QuaziJ A StrongL R WestDavid R BotterillR W ClifftT R EdgecockM EdwardsS M FisherT J JonesP R NortonD P SalmonJ C ThompsonB Bloch-devauxP ColasH DuarteWitold KozaneckiE LançonM C LemaireE LocciE MonnierP PérezF PerrierJ RanderJ F RenardyA RosowskyA RoussarieJ P SchullerJ SchwindlingD Si MohandB VallageR P JohnsonA M LitkeG TaylorJ WearJohn Gavin AshmanW BabbageC N BoothC M ButtarR E CarneyS L CartwrightF CombleyF HatfieldP ReevesL F ThompsonE BarbieroA BöhrerS BrandtG D CowanClaus GrupenG LuttersF RiveraU SchäferL SmolikR Della MarinaG GianniniB GobboF RagusaL BellantoniW ChenD CinabroJ S ConwayD F CowenZ FengD P S FergusonY S GaoJ GrahlJ L HartonR C JaredB W LeclaireC LishkaPan Yi BinJ R PaterY SaadiV SharmaM SchmittZ H ShiA M WalshF V WeberWu Sau LanX WuM ZhengG Zobernigsubject
PhysicsQuarkTop quarkParticle physicsPhysics and Astronomy (miscellaneous)010308 nuclear & particles physicsElectron–positron annihilationPhysicsElementary particleWeinberg angle01 natural sciencesStandard ModelNuclear physicsALEPH Experiment0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]010306 general physicsEngineering (miscellaneous)ALEPH experimentParticle Physics - ExperimentLeptondescription
Based on 520000 fermion pairs accumulated during the first three years of data collection by the ALEPH detector at LEP, updated values of the resonance parameters of the Z are determined to be M(Z) = (91.187 +/- 0.009) GeV, GAMMA(Z) = (2.501 +/- 0.012) GeV, sigma(had)0 = (41.60 +/- 0.27) nb, and R(l) = 20.78 +/- 0.13. The corresponding number of light neutrino species is N(v) = 2.97 +/- 0.05. The forward-backward asymmetry in lepton-pair decays is used to determine the ratio of vector to axial-vector couplings of leptons: g(V)2(M(z)2)/g(A)2 (M(Z)2) = 0.0052 +/- 0.00 1 6. Combining this with ALEPH measurements of the b and c quark asymmetries and tau polarization gives sin2theta(W)eff = 0.2326 +/- 0.0013. Assuming the minimal Standard Model, and including measurements of M(W)/M(Z) from ppBAR colliders and neutrino-nucleon scattering, the mass of the top quark is M(top)=156 +/-22/25 +/-17/22 Higgs GeV. RI Perrier, Frederic/A-5953-2011; ANTONELLI, ANTONELLA/C-6238-2011; Buttar, Craig/D-3706-2011; Stahl, Achim/E-8846-2011; 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
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1993-01-01 |