6533b86dfe1ef96bd12caae1
RESEARCH PRODUCT
A measurement of the gluon splitting rate into bb̄ pairs in hadronic Z decays
R. BarateD. BuskulicD. DecampP. GhezC. GoyJ.-p. LeesA. LucotteE. MerleM.-n. MinardJ.-y. NiefB. PietrzykR. AlemanyG. BoixM.p. CasadoM. ChmeissaniJ.m. CrespoM. DelfinoE. FernandezM. Fernandez-bosmanLl. GarridoE. GraugèsA. JusteM. MartinezG. MerinoR. MiquelLl.m. MirI.c. ParkA. PascualI. RiuF. SanchezA. ColaleoD. CreanzaM. De PalmaG. GelaoG. IaselliG. MaggiM. MaggiS. NuzzoA. RanieriG. RasoF. RuggieriG. SelvaggiL. SilvestrisP. TempestaA. TricomiG. ZitoX. HuangJ. LinQ. OuyangT. WangY. XieR. XuS. XueJ. ZhangL. ZhangW. ZhaoD. AbbaneoU. BeckerP. Bright-thomasD. CasperM. CattaneoF. CeruttiV. CiulliG. DissertoriH. DrevermannR.w. FortyM. FrankR. HagelbergA.w. HalleyJ.b. HansenJ. HarveyP. JanotB. JostI. LehrausP. MatoA. MintenL. MonetaA. PachecoF. RanjardL. RolandiD. RousseauD. SchlatterM. SchmittO. SchneiderW. TejessyF. TeubertI.r. TomalinH. WachsmuthZ. AjaltouniF. BadaudG. ChazelleO. DeschampsA. FalvardC. FerdiP. GayC. GuicheneyP. HenrardJ. JoussetB. MichelS. MonteilJ-c. MontretD. PallinP. PerretF. PodlyskiJ. ProriolP. RosnetJ.d. HansenJ.r. HansenP.h. HansenB.s. NilssonB. RenschA. WäänänenG. DaskalakisA. KyriakisC. MarkouE. SimopoulouI. SiotisA. VayakiA. BlondelG. BonneaudJ.-c. BrientP. BourdonA. RougéM. RumpfA. ValassiM. VerderiH. VideauE. FocardiG. ParriniK. ZachariadouM. CordenC. GeorgiopoulosD.e. JaffeA. AntonelliG. BencivenniG. BolognaF. BossiP. CampanaG. CaponV. ChiarellaG. FeliciP. LaurelliG. MannocchiF. MurtasG.p. MurtasL. PassalacquaM. Pepe-altarelliL. CurtisJ.g. LynchP. NegusV. O'sheaC. RaineJ.m. ScarrK. SmithP. Teixeira-diasA.s. ThompsonE. ThomsonO. BuchmüllerS. DhamotharanC. GewenigerG. GraefeP. HankeG. HansperV. HeppE.e. KlugeA. PutzerJ. SommerK. TittelS. WernerM. WunschR. BeuselinckD.m. BinnieW. CameronP.j. DornanM. GironeS. GoodsirE.b. MartinN. MarinelliA. MoutoussiJ. NashJ.k. SedgbeerP. SpagnoloM.d. WilliamsV.m. GheteP. GirtlerE. KneringerD. KuhnG. RudolphA.p. BetteridgeC.k. BowderyP.g. BuckP. ColrainG. CrawfordA.j. FinchF. FosterG. HughesR.w.l. JonesN.a. RobertsonM.i. WilliamsI. GiehlC. HoffmannK. JakobsK. KleinknechtG. QuastB. RenkE. RohneH.-g. SanderP. Van GemmerenC. ZeitnitzJ.j. AubertC. BenchoukA. BonissentG. BujosaJ. CarrP. CoyleF. EtienneO. LeroyF. MotschP. PayreM. TalbyA. SadoukiM. ThulasidasK. TrabelsiM. AleppoM. AntonelliF. RagusaR. BerlichV. BüscherG. CowanH. DietlG. GanisG. LütjensC. MannertW. MännerH.-g. MoserS. SchaelR. SettlesH. SeywerdH. StenzelW. WiedenmannG. WolfJ. BoucrotO. CallotS. ChenA. CordierM. DavierL. DuflotJ.-f. GrivazPh. HeusseA. HöckerA. JacholkowskaD.w. KimF. Le DiberderJ. LefrançoisA.-m. LutzM.-h. SchuneE. TournefierJ.-j. VeilletI. VideauD. ZerwasP. AzzurriG. BagliesiG. BatignaniS. BettariniT. BoccaliC. BozziG. CalderiniM. CarpinelliM.a. CiocciR. Dell'orsoR. FantechiI. FerranteL. FoàF. FortiA. GiassiM.a. GiorgiA. GregorioF. LigabueA. LusianiP.s. MarrocchesiA. MessineoF. PallaG. RizzoG. SanguinettiA. SciabàG. SguazzoniR. TenchiniG. TonelliC. VanniniA. VenturiP.g. VerdiniG.a. BlairL.m. BryantJ.t. ChambersM.g. GreenT. MedcalfP. PerrodoJ.a. StrongJ.h. Von Wimmersperg-toellerD.r. BotterillR.w. ClifftT.r. EdgecockP.r. NortonJ.c. ThompsonA.e. WrightB. Bloch-devauxP. ColasS. EmeryW. KozaneckiE. LançonM.-c. LemaireE. LocciP. PerezJ. RanderJ.-f. RenardyA. RoussarieJ.-p. SchullerJ. SchwindlingA. TrabelsiB. VallageS.n. BlackJ.h. DannR.p. JohnsonH.y. KimN. KonstantinidisA.m. LitkeM.a. McneilG. TaylorC.n. BoothS. CartwrightF. CombleyM.s. KellyM. LehtoL.f. ThompsonK. AffholderbachA. BöhrerS. BrandtC. GrupenP. SaraivaL. SmolikF. StephanG. GianniniB. GobboG. MusolinoJ. RothbergS. WasserbaechS.r. ArmstrongE. CharlesP. ElmerD.p.s. FergusonY. GaoS. GonzálezT.c. GreeningO.j. HayesH. HuS. JinP.a. Mcnamara IiiJ.m. NachtmanJ. NielsenW. OrejudosY.b. PanY. SaadiI.j. ScottJ. WalshSau Lan WuX. WuG. Zobernigsubject
PhysicsALEPH ExperimentNuclear and High Energy PhysicsParticle physicsAlephgluon splittingPhysicsHadronAtomic physicsResonance (particle physics)ALEPH experimentALEPH Experiment; gluon splittingGluondescription
Abstract A measurement of the fraction of hadronic Z decays in which a gluon splits into a b b pair, g b b , is presented using data collected by ALEPH from 1992 to 1995 at the Z resonance. The selection is based on four-jet events. Events are selected by means of topological cuts and a lifetime tag. The result is g b b =(2.77±0.42 (stat)±0.57 (syst))×10 −3 .
year | journal | country | edition | language |
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1998-08-01 |