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. 2008 Dec 5;101(23):232002.
doi: 10.1103/PhysRevLett.101.232002. Epub 2008 Dec 5.

Observation of the doubly strange b baryon Omegab-

V M Abazov  1 B AbbottM AbolinsB S AcharyaM AdamsT AdamsE AguiloM AhsanG D AlexeevG AlkhazovA AltonG AlversonG A AlvesM AnastasoaieL S AncuT AndeenB AndrieuM S AnzelcM AokiY ArnoudM ArovM ArthaudA AskewB AsmanA C S Assis JesusO AtramentovC AvilaF BadaudL BagbyB BaldinD V BandurinP BanerjeeS BanerjeeE BarberisA-F BarfussP BargassaP BaringerJ BarretoJ F BartlettU BasslerD BauerS BealeA BeanM BegalliM BegelC Belanger-ChampagneL BellantoniA BellavanceJ A BenitezS B BeriG BernardiR BernhardI BertramM BesançonR BeuselinckV A BezzubovP C BhatV BhatnagarC BiscaratG BlazeyF BlekmanS BlessingK BloomA BoehnleinD BolineT A BoltonE E BoosG BorissovT BoseA BrandtR BrockG BrooijmansA BrossD BrownX B BuN J BuchananD BuchholzM BuehlerV BuescherV BunichevS BurdinT H BurnettC P BuszelloJ M ButlerP CalfayanS CalvetJ CamminE CarreraW CarvalhoB C K CaseyH Castilla-ValdezS ChakrabartiD ChakrabortyK M ChanA ChandraE CheuF ChevallierD K ChoS ChoiB ChoudharyL ChristofekT ChristoudiasS CihangirD ClaesJ ClutterM CookeW E CooperM CorcoranF CoudercM-C CousinouS Crépé-RenaudinV CuplovD CuttsM CwiokH da MottaA DasG DaviesK DeS J de JongE De La Cruz-BureloC De Oliveira MartinsK DeVaughanJ D DegenhardtF DéliotM DemarteauR DeminaD DenisovS P DenisovS DesaiH T DiehlM DiesburgA DominguezH DongT DorlandA DubeyL V DudkoL DuflotS R DugadD DugganA DuperrinJ DyerA DyshkantM EadsD EdmundsJ EllisonV D ElviraY EnariS EnoP ErmolovH EvansA EvdokimovV N EvdokimovA V FerapontovT FerbelF FiedlerF FilthautW FisherH E FiskM FortnerH FoxS FuS FuessT GadfortC F GaleaC GarciaA Garcia-BellidoV GavrilovP GayW GeistW GengC E GerberY GershteinD GillbergG GintherN GollubB GómezA GoussiouP D GrannisH GreenleeZ D GreenwoodE M GregoresG GrenierPh GrisJ-F GrivazA GrohsjeanS GrünendahlM W GrünewaldF GuoJ GuoG GutierrezP GutierrezA HaasN J HadleyP HaefnerS HagopianJ HaleyI HallR E HallL HanK HarderA HarelJ M HauptmanJ HaysT HebbekerD HedinJ G HegemanA P HeinsonU HeintzC HenselK HernerG HeskethM D HildrethR HiroskyJ D HobbsB HoeneisenH HoethM HohlfeldS HossainP HoubenY HuZ HubacekV HynekI IashviliR IllingworthA S ItoS JabeenM JaffréS JainK JakobsC JarvisR JesikK JohnsC JohnsonM JohnsonD JohnstonA JonckheereP JonssonA JusteE KajfaszJ M KalkD KarmanovP A KasperI KatsanosD KauV KaushikR KehoeS KermicheN KhalatyanA KhanovA KharchilavaY M KharzheevD KhatidzeT J KimM H KirbyM KirschB KlimaJ M KohliE V KomissarovJ-P KonrathA V KozelovJ KrausT KuhlA KumarA KupcoT KurcaV A KuzminJ KvitaF LacroixD LamS LammersG LandsbergP LebrunW M LeeA LeflatJ LellouchJ LiL LiQ Z LiS M LiettiJ K LimJ G R LimaD LincolnJ LinnemannV V LipaevR LiptonY LiuZ LiuA LobodenkoM LokajicekP LoveH J LubattiR LunaA L LyonA K A MacielD MackinR J MadarasP MättigC MagassA MagerkurthP K MalH B MalbouissonS MalikV L MalyshevY MaravinB MartinR McCarthyA MelnitchoukL MendozaP G MercadanteY P MerekovM MerkinK W MerrittA MeyerJ MeyerJ MitrevskiR K MommsenN K MondalR W MooreT MoulikG S MuanzaM MulhearnO MundalL MundimE NagyM NaimuddinM NarainN A NaumannH A NealJ P NegretP NeustroevH NilsenH NogimaS F NovaesT NunnemannV O'DellD C O'NeilG ObrantC OchandoD OnoprienkoJ OrdunaN OshimaN OsmanJ OstaR OtecG J Otero y GarzónM OwenP PadleyM PangilinanN ParasharS-J ParkS K ParkJ ParsonsR PartridgeN ParuaA PatwaG PawloskiB PenningM PerfilovK PetersY PetersP PétroffM PetteniR PiegaiaJ PiperM-A PleierP L M Podesta-LermaV M PodstavkovY PogorelovM-E PolP PolozovB G PopeA V PopovC PotterW L Prado da SilvaH B ProsperS ProtopopescuJ QianA QuadtB QuinnA RakitineM S RangelK RanjanP N RatoffP RenkelP RichJ RiegerM RijssenbeekI Ripp-BaudotF RizatdinovaS RobinsonR F RodriguesM RominskyC RoyonA RozhdestvenskiP RubinovR RuchtiG SafronovG SajotA Sánchez-HernándezM P SandersB SanghiG SavageL SawyerT ScanlonD SchaileR D SchambergerY ScheglovH SchellmanT SchliephakeS SchlobohmC SchwanenbergerA SchwartzmanR SchwienhorstJ SekaricH SeveriniE ShabalinaM ShamimV SharyA A ShchukinR K ShivpuriV SiccardiV SimakV SirotenkoP SkubicP SlatteryD SmirnovG R SnowJ SnowS SnyderS Söldner-RemboldL SonnenscheinA SopczakM SosebeeK SoustruznikB SpurlockJ StarkJ SteeleV StolinD A StoyanovaJ StrandbergS StrandbergM A StrangE StraussM StraussR StröhmerD StromL StutteS SumowidagdoP SvoiskyA SznajderP TamburelloA TanasijczukW TaylorB TillerF TissandierM TitovV V TokmeninI TorchianiD TsybychevB TuchmingC TullyP M TutsR UnalanL UvarovS UvarovS UzunyanB VachonP J van den BergR Van KootenW M van LeeuwenN VarelasE W VarnesI A VasilyevP VerdierL S VertogradovY VertogradovaM VerzocchiD VilanovaF Villeneuve-SeguierP VintP VokacM VoutilainenR WagnerH D WahlM H L S WangJ WarcholG WattsM WayneG WeberM WeberL Welty-RiegerA WengerN WermesM WetsteinA WhiteD WickeM WilliamsG W WilsonS J WimpennyM WobischD R WoodT R WyattY XieS YacoobR YamadaW-C YangT YasudaY A YatsunenkoH YinK YipH D YooS W YounJ YuC ZeitnitzS ZelitchT ZhaoB ZhouJ ZhuM ZielinskiD ZieminskaA ZieminskiL ZivkovicV ZutshiE G ZverevD0 Collaboration
Affiliations

Affiliation

  • 1 Joint Institute for Nuclear Research, Dubna, Russia.

Observation of the doubly strange b baryon Omegab-

V M Abazov et al. Phys Rev Lett. .
. 2008 Dec 5;101(23):232002.
doi: 10.1103/PhysRevLett.101.232002. Epub 2008 Dec 5.

Authors

V M Abazov  1 B AbbottM AbolinsB S AcharyaM AdamsT AdamsE AguiloM AhsanG D AlexeevG AlkhazovA AltonG AlversonG A AlvesM AnastasoaieL S AncuT AndeenB AndrieuM S AnzelcM AokiY ArnoudM ArovM ArthaudA AskewB AsmanA C S Assis JesusO AtramentovC AvilaF BadaudL BagbyB BaldinD V BandurinP BanerjeeS BanerjeeE BarberisA-F BarfussP BargassaP BaringerJ BarretoJ F BartlettU BasslerD BauerS BealeA BeanM BegalliM BegelC Belanger-ChampagneL BellantoniA BellavanceJ A BenitezS B BeriG BernardiR BernhardI BertramM BesançonR BeuselinckV A BezzubovP C BhatV BhatnagarC BiscaratG BlazeyF BlekmanS BlessingK BloomA BoehnleinD BolineT A BoltonE E BoosG BorissovT BoseA BrandtR BrockG BrooijmansA BrossD BrownX B BuN J BuchananD BuchholzM BuehlerV BuescherV BunichevS BurdinT H BurnettC P BuszelloJ M ButlerP CalfayanS CalvetJ CamminE CarreraW CarvalhoB C K CaseyH Castilla-ValdezS ChakrabartiD ChakrabortyK M ChanA ChandraE CheuF ChevallierD K ChoS ChoiB ChoudharyL ChristofekT ChristoudiasS CihangirD ClaesJ ClutterM CookeW E CooperM CorcoranF CoudercM-C CousinouS Crépé-RenaudinV CuplovD CuttsM CwiokH da MottaA DasG DaviesK DeS J de JongE De La Cruz-BureloC De Oliveira MartinsK DeVaughanJ D DegenhardtF DéliotM DemarteauR DeminaD DenisovS P DenisovS DesaiH T DiehlM DiesburgA DominguezH DongT DorlandA DubeyL V DudkoL DuflotS R DugadD DugganA DuperrinJ DyerA DyshkantM EadsD EdmundsJ EllisonV D ElviraY EnariS EnoP ErmolovH EvansA EvdokimovV N EvdokimovA V FerapontovT FerbelF FiedlerF FilthautW FisherH E FiskM FortnerH FoxS FuS FuessT GadfortC F GaleaC GarciaA Garcia-BellidoV GavrilovP GayW GeistW GengC E GerberY GershteinD GillbergG GintherN GollubB GómezA GoussiouP D GrannisH GreenleeZ D GreenwoodE M GregoresG GrenierPh GrisJ-F GrivazA GrohsjeanS GrünendahlM W GrünewaldF GuoJ GuoG GutierrezP GutierrezA HaasN J HadleyP HaefnerS HagopianJ HaleyI HallR E HallL HanK HarderA HarelJ M HauptmanJ HaysT HebbekerD HedinJ G HegemanA P HeinsonU HeintzC HenselK HernerG HeskethM D HildrethR HiroskyJ D HobbsB HoeneisenH HoethM HohlfeldS HossainP HoubenY HuZ HubacekV HynekI IashviliR IllingworthA S ItoS JabeenM JaffréS JainK JakobsC JarvisR JesikK JohnsC JohnsonM JohnsonD JohnstonA JonckheereP JonssonA JusteE KajfaszJ M KalkD KarmanovP A KasperI KatsanosD KauV KaushikR KehoeS KermicheN KhalatyanA KhanovA KharchilavaY M KharzheevD KhatidzeT J KimM H KirbyM KirschB KlimaJ M KohliE V KomissarovJ-P KonrathA V KozelovJ KrausT KuhlA KumarA KupcoT KurcaV A KuzminJ KvitaF LacroixD LamS LammersG LandsbergP LebrunW M LeeA LeflatJ LellouchJ LiL LiQ Z LiS M LiettiJ K LimJ G R LimaD LincolnJ LinnemannV V LipaevR LiptonY LiuZ LiuA LobodenkoM LokajicekP LoveH J LubattiR LunaA L LyonA K A MacielD MackinR J MadarasP MättigC MagassA MagerkurthP K MalH B MalbouissonS MalikV L MalyshevY MaravinB MartinR McCarthyA MelnitchoukL MendozaP G MercadanteY P MerekovM MerkinK W MerrittA MeyerJ MeyerJ MitrevskiR K MommsenN K MondalR W MooreT MoulikG S MuanzaM MulhearnO MundalL MundimE NagyM NaimuddinM NarainN A NaumannH A NealJ P NegretP NeustroevH NilsenH NogimaS F NovaesT NunnemannV O'DellD C O'NeilG ObrantC OchandoD OnoprienkoJ OrdunaN OshimaN OsmanJ OstaR OtecG J Otero y GarzónM OwenP PadleyM PangilinanN ParasharS-J ParkS K ParkJ ParsonsR PartridgeN ParuaA PatwaG PawloskiB PenningM PerfilovK PetersY PetersP PétroffM PetteniR PiegaiaJ PiperM-A PleierP L M Podesta-LermaV M PodstavkovY PogorelovM-E PolP PolozovB G PopeA V PopovC PotterW L Prado da SilvaH B ProsperS ProtopopescuJ QianA QuadtB QuinnA RakitineM S RangelK RanjanP N RatoffP RenkelP RichJ RiegerM RijssenbeekI Ripp-BaudotF RizatdinovaS RobinsonR F RodriguesM RominskyC RoyonA RozhdestvenskiP RubinovR RuchtiG SafronovG SajotA Sánchez-HernándezM P SandersB SanghiG SavageL SawyerT ScanlonD SchaileR D SchambergerY ScheglovH SchellmanT SchliephakeS SchlobohmC SchwanenbergerA SchwartzmanR SchwienhorstJ SekaricH SeveriniE ShabalinaM ShamimV SharyA A ShchukinR K ShivpuriV SiccardiV SimakV SirotenkoP SkubicP SlatteryD SmirnovG R SnowJ SnowS SnyderS Söldner-RemboldL SonnenscheinA SopczakM SosebeeK SoustruznikB SpurlockJ StarkJ SteeleV StolinD A StoyanovaJ StrandbergS StrandbergM A StrangE StraussM StraussR StröhmerD StromL StutteS SumowidagdoP SvoiskyA SznajderP TamburelloA TanasijczukW TaylorB TillerF TissandierM TitovV V TokmeninI TorchianiD TsybychevB TuchmingC TullyP M TutsR UnalanL UvarovS UvarovS UzunyanB VachonP J van den BergR Van KootenW M van LeeuwenN VarelasE W VarnesI A VasilyevP VerdierL S VertogradovY VertogradovaM VerzocchiD VilanovaF Villeneuve-SeguierP VintP VokacM VoutilainenR WagnerH D WahlM H L S WangJ WarcholG WattsM WayneG WeberM WeberL Welty-RiegerA WengerN WermesM WetsteinA WhiteD WickeM WilliamsG W WilsonS J WimpennyM WobischD R WoodT R WyattY XieS YacoobR YamadaW-C YangT YasudaY A YatsunenkoH YinK YipH D YooS W YounJ YuC ZeitnitzS ZelitchT ZhaoB ZhouJ ZhuM ZielinskiD ZieminskaA ZieminskiL ZivkovicV ZutshiE G ZverevD0 Collaboration

Affiliation

  • 1 Joint Institute for Nuclear Research, Dubna, Russia.

Abstract

We report the observation of the doubly strange b baryon Omegab- in the decay channel Omegab(-)-->J/psiOmega-, with J/psi-->mu+mu(-) and Omega(-)-->LambdaK(-)-->(ppi-)K-, in pp collisions at sqrt[s]=1.96 TeV. Using approximately 1.3 fb(-1) of data collected with the D0 detector at the Fermilab Tevatron Collider, we observe 17.8+/-4.9(stat)+/-0.8(syst) Omegab- signal events at a mass of 6.165+/-0.010(stat)+/-0.013(syst) GeV. The significance of the observed signal is 5.4sigma, corresponding to a probability of 6.7 x 10(-8) of it arising from a background fluctuation.

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