6533b835fe1ef96bd129fd62

RESEARCH PRODUCT

Observation of theΩb−baryon and measurement of the properties of theΞb−andΩb−baryons

E. J. JeonPetra MerkelSi XieA. SukhanovS. HouS. Pagan GrisoW. KetchumO. SaltóA. SedovRoman LysakC. VellidisJ. HustonS. GiaguS. GiaguS. WilburD. HirschbuehlH. H. WilliamsS. RolliW. C. WesterL. OakesC. HendersonElisabetta PianoriJane NachtmanJane NachtmanM. VidalA. RahamanRobert SnihurW. H. ChungTiehui LiuRodolfo CarosiU. K. YangU. K. YangF. HappacherDario BiselloA. BhattiRobert M HarrisD. J. KongIgnacio RedondoHyun-chul KimIvan-kresimir FuricR. VidalS. BehariK. T. PittsM. FeindtP. SchlabachD. HareS. HewamanageF. VázquezF. VázquezU. HusemannW. AshmanskasB. CarlsP. LukensAvraham YagilJonas RademackerJonas RademackerG. LatinoJ. LinacreJ. BellingerM. HouldenG. IntrozziG. IntrozziC. S. MoonB. ParksH. C. FangS. ZucchelliCorrinne MillsD. GlenzinskiA. CanepaLouis LyonsV. PapadimitriouW. JohnsonE. JamesC. P. MarinoSong-ming WangM. A. SchmidtC. M. GinsburgE. RogersA. SohaT. R. JunkAndrea CastroM. CordelliG. BusettoBrian L WinerChristoph PausG. VelevPaul Edmund KarchinG. MancaG. MancaDaijin KimG. PiacentinoJ. D. LewisMariopaolo GiordaniMariopaolo GiordaniRainer WallnyP. Movilla FernandezJason NielsenJason NielsenJ. P. ChouD. LucchesiW. T. FedorkoUlysses GrundlerKevin LannonH. SaarikkoD. WatersXuan ZhangDaniela BortolettoM. MilnikC. MarinoG. A. ThompsonJ. L. GimmellM. N. MondragonM. N. MondragonP. F. ShepardB. CasalD. J. CoxA. Di CantoS. Y. TsaiA. HeijboerJ. LueckC. Cuenca AlmenarC. Cuenca AlmenarC. S. LinN. Van RemortelN. Van RemortelP. SquillaciotiKazuhiko HaraP. Ttito-guzmánJ. R. SmithR. J. MillerP. MuratY. KatoY. KatoM. E. ConveryLuca ScodellaroW. K. SakumotoAlberto AnnoviK. L. ByrumJ. DengN. GiokarisT. MakiB. ÁLvarez GonzálezP. GirominiT. SpreitzerAnna ZanettiS. BurkeJahred AdelmanA. MukherjeeJoe IncandelaGuenakh MitselmakherT. AkimotoT. VineD. BeecherF. GarbersonMauro Dell'orsoC. HaberR. L. WagnerV. KhotilovichGuillelmo Gomez-ceballosM. RescignoS. W. LeeC. DelucaE. BrubakerM. LindgrenAndrew MehtaL. NodulmanReisaburo TanakaGuido VolpiO. GonzálezN. MiladinovicK. MakhoulManfred PauliniManuela CampanelliS. Y. JunAllan G ClarkRoger MooreD. O. LitvintsevSooran KimGiovanni BellettiniJ. PursleyJacobo KonigsbergD. CarlsmithA. Barbaro-galtieriA. BeretvasC. FerrazzaV. V. GlagolevY. SeiyaA. J. SlaughterTomoko YoshidaTomoko YoshidaKristian Allan HahnM. RossiK. ChungK. ChungG. WilliamsRobert HarrJeannine Wagner-kuhrChristina MesropianJ. C. YunKyung-suk ChoK. GoulianosVictoria Jane MartinVictoria Jane MartinAndrea BocciAndrea BocciOliver Stelzer-chiltonM. MussiniT. RodriguezStanislav TokárYongsun KimS. CarrilloS. CarrilloJ. E. KimNils KrumnackR. L. LanderR. L. LanderB. T. HuffmanPetar MaksimovicItsuo NakanoL. DemortierAdrian BuzatuV. BoisvertR. E. BlairF. RimondiJ. MorlockThorsten ChwalekV. RamakrishnanTommaso DorigoShinhong KimB. Di RuzzaB. Di RuzzaK. SliwaB. BlumenfeldM. LoretiJ. PatrickG. CortianaW. BadgettT. SuzukiG. BauerP. WagnerM. J. MorelloF. D. SniderJ. E. JungAlan GarfinkelJ. HeinrichGiorgio ChiarelliR. MumfordG. L. StryckerP. De BarbaroP. H. BeaucheminFrank WürthweinVirgil E BarnesJ. P. FernandezK. TerashiNicola TuriniNicola TuriniS. H. OhJ. RussM. KurataF. UkegawaFranco BedeschiY. C. ChenN. KimuraPeter McintyreJ. BeringerT. TomuraT. MasubuchiY. TakeuchiJ. BoudreauB. BrauB. BrauG. De LorenzoL. Sexton-kennedyM. J. ShochetV. CavaliereV. CavaliereD. BenjaminD. BenjaminM. HeckJ. MülmenstädtA. LoginovL. PondromA. Savoy-navarroA. Savoy-navarroM. IoriA. B. WicklundD. TobackT. MaruyamaA. T. LaasanenA. ArtikovA. ArtikovJ. Y. HanR. VilarR. E. HughesE. PueschelT. WrightS. GrinsteinA. N. SisakyanL. E. KirschRicardo EusebiM. GoldL. SartoriA. BoveiaG. CompostellaMaxim GoncharovP. GarosiT. DaviesV. GiakoumopoulouMark KruseA. ScribanoT. AaltonenS. WolbersT. OkusawaM. J. KimS. TorreS. MalikA. MenzioneH. MiyakeM. ShimojimaAlison ListerChris HaysY. TuN. PounderC. LuciC. LuciA. AnastassovSourabh DubeMichael SchmittM. HartzL. SantiC. WolfeIntae YuG. FlanaganA. PapaikonomouG. GiurgiuDaniel WhitesonDaniel WhitesonE. PalenciaBernd StelzerJ. C. CullyTetsuo ArisawaJ. ConwayA. J. MartinJulien DoniniC. BlockerA. MitraKoji YamamotoA. Manousakis-katsikakisP. K. TengE. LeeM. StanitzkiY. C. YangE. VatagaJ. BudagovA. GreselePaul TiptonMarcelo VogelS. JindarianiS. Z. ShalhoutP. RoyM. M. DeninnoD. W. GerdesS. TourneurS. De CeccoV. BartschRobin ErbacherM. DattaC. S. HillC. S. HillArtur ApresyanA. GesslerP. F. DerwentV. RusuD. StentzJ. WeineltAndreas WarburtonS. KlimenkoI. SuslovE. WicklundB. Y. HanSinead FarringtonP. BarriaSandra LeoneMaxwell ChertokT. LecompteMichael L. NormanVyacheslav KrutelyovAlexander ParamonovJ. GalyardtM. LancasterGeorgios ChoudalakisA. NapierW-m. YaoG. LunguS. NeubauerJ. YamaokaL. ZanelloL. ZanelloAndrew Gennadievich IvanovC. PlagerA. AttalD. KropD. HidasD. DagenhartSally SeidelC. CalanchaI. LazzizzeraC. I. CiobanuM. HareA. BodekA. T. GoshawM. BinkleyB. R. KoShih-hsin ChangC. DionisiC. DionisiK. OsterbergK. KondoP. B. RentonS. S. YuO. PoukhovO. PoukhovN. RanjanK. TollefsonL. RistoriA. V. KotwalJ. NettS. AmerioA. AurisanoR. KephartA. GolossanovAlexei SafonovAlessandro CerriM. E. MattsonZ. Gunay-unalanSunil SomalwarN. MoggiElliot LipelesR. McnultyR. McnultyKatsufumi SatoM. TecchioMassimo CasarsaJ. EfronKevin BurkettThomas SchwarzD. CauzD. CauzM. WeinbergerS. ErredeFrancesco CrescioliFrancesco CrescioliJ. StrologasP. SinervoFederico SforzaFederico SforzaY. S. ChungSofia VallecorsaA. BridgemanD. AmideiIgor VolobouevIgor VolobouevJavier CuevasS. LamiM. JonesChuan-ming LiuG. PunziK. GibsonJ. LysR. MadrakJ. NaganomaJ. SlaunwhiteD. JangC. Grosso-pilcherN. GoldschmidtA. VarganovDeepak KarR. RoserIvan VilaF. PrakoshynEva HalkiadakisL. LovasY. NagaiA. SchmidtMaria Agnese CiocciDave PellettI. ShreyberMalte RenzA. NaganoG. ChlachidzeK. YoritaB. RutherfordS. TkaczykAidan RobsonD. ErredeG. B. YuK. NakamuraM. K. JhaE. E. SchmidtG. P. Di GiovanniJ. Guimaraes Da CostaD. TonelliL. BrigliadoriJ. ProudfootH. S. BuddR. G. FeildI. V. GorelovJ. ThomJ. ThomTh. MüllerR. St. DenisB. JayatilakaR. CulbertsonO. NorniellaA. ElaginM. MartínezMarkus FrankJ. S. SuhThomas PeifferGino BollaJay DittmannS. DonatiKenichi HatakeyamaV. SorinM. FranklinJ. KeungD. TorrettaY. ZhengG. P. YehJ. HeuserR. Martínez-ballarínMichele GallinaroPeter WittichPeter WittichY. ShonD. MacqueenH. GerberichJ. C. FreemanA. RuizB. KnutesonR. TakashimaMark NeubauerS. C. HsuTeresa RodrigoK. YiK. YiC. A. CoxA. SemenovD. ClarkFabrizio MargaroliM. HerndonS. PashapourB. WhitehouseP. J. BusseyA. TaffardA. TaffardS. CabreraS. CabreraT. J. PhillipsV. NeculaSam HarperR. OravaM. TrovatoP. TotaroA. PronkoR. D. FieldEmily NurseN. P. KulkarniS. BuddP. DongS. RichterMichal KrepsWolfgang WagnerK. GenserPaul LujanM. P. SchmidtM. P. SchmidtFabrizio ScuriS. CarronS. CarronT. KuboP. CatastiniC. BrombergA. DeisherMark CampbellP. MehtalaM. GiuntaChristopher NeuChristopher NeuJ. YohAmitabh LathAnna SfyrlaPaola GiannettiB. A. BarnettGiorgio ApollinariTeruki KamonP. MazzantiKaori MaeshimaH. S. LeePaolo MastrandreaT. KuhrP. WilsonJ. E. GarciaMatteo Cavalli-sforzaS. H. ChuangGervasio GomezS. SarkarAndrey KorytovI. BizjakI. BizjakR. L. WagnerF. PtohosF. PtohosR. J. TesarekM. HusseinBenjamin KilminsterS. ShiraishiS. KwangS. R. HahnY. D. OhJ. AntosF. AzfarFrank ChlebanaL. PineraT. WakisakaS. MaldeTara ShearsI. OksuzianR. ForrestT. MiaoD. ChokheliAldo PenzoXin WuF. CanelliN. S. LockyerE. ThomsonRoberto RossinA. S. ThompsonJoe KrollMonica D'onofrioK. S. McfarlandM. MathisA. HockerH. W. KimK. K. JooStephan LammelLucio CerritoLucio CerritoG. Pauletta

subject

PhysicsNuclear and High Energy PhysicsParticle physics010308 nuclear & particles physicsLambda01 natural sciencesOmegaBaryonParticle decayCrystallography0103 physical sciencesTransverse momentumHigh Energy Physics::ExperimentNuclear Experiment010306 general physicsCollider Detector at Fermilab

description

The authors report the observation of the bottom, doubly-strange baryon {Omega}{sub b}{sup -} through the decay chain {Omega}{sub b}{sup -} {yields} J/{psi}{Omega}{sup -}, where J/{psi} {yields} {mu}{sup +} {mu}{sup -}, {Omega}{sup -} {yields} {Lambda}K{sup -}, and {Lambda} {yields} p {pi}{sup -}, using 4.2 fb{sup -1} of data from p{bar p} collisions at {radical}s = 1.96 TeV, and recorded with the Collider Detector at Fermilab. A signal is observed whose probability of arising from a background fluctuation is 4.0 x 10{sup -8}, or 5.5 Gaussian standard deviations. The {Omega}{sub b}{sup -} mass is measured to be 6054.4 {+-} 6.8(stat.) {+-} 0.9(syst.) MeV/c{sup 2}. The lifetime of the {Omega}{sub b}{sup -} baryon is measured to be 1.13{sub -0.40}{sup +0.53}(stat.) {+-} 0.02(syst.) ps. In addition, for the {Xi}{sub b}{sup -} baryon they measure a mass of 5790.9 {+-} 2.6(stat.) {+-} 0.8(syst.) MeV/c{sup 2} and a lifetime of 1.56{sub -0.25}{sup +0.27}(stat.) {+-} 0.02(syst.) ps.

yearjournalcountryeditionlanguage
2009-10-06Physical Review D
https://doi.org/10.1103/physrevd.80.072003