6533b82bfe1ef96bd128df6b

RESEARCH PRODUCT

Correlated leading baryon-antibaryon production ine+e−→cc¯→Λc+Λ¯c−X

V. B. GolubevB. LindquistAbner SofferD. DujmicElisa ManoniS. PlayferH. W. WulsinCh YècheSw. BanerjeeC. P. O'gradyMarcello RotondoM. SigamaniA. V. TelnovT. E. LathamG. RizzoH. B. CrawleyD. A. DollMaria Roberta MongeL. M. CremaldiF. SimonettoJ. A. MckennaA. PetzoldM. EbertR. H. SchindlerE. PaoloniC. A. WestF. U. BernlochnerG. J. KingA. M. RulandS. K. SwainJ. Firmino Da CostaX. R. ChenElisa GuidoJ. L. RitchieD. G. HitlinR. AndreassenJ. P. MorrisV. AzzoliniE. PrencipeL. DongC. M. HawkesM. S. DubrovinA. PerezMatteo RamaS. PrellJames H CochranV. PoireauR. BartoldusV. EygesM. J. CharlesJ. F. BenitezA. J. MartinezB. SpaanR. KroegerH. SchröderS. LuitzA. A. SalnikovT. J. WestP. J. ClarkD. BettoniNicola NeriA. T. WatsonA. J. EdwardsT. S. MattisonM. LuP. Del Amo SanchezL. LanceriT. LueckGabriele SimiM. SimardD. A. RobertsRoberto CalabreseC. HastJ. OcarizM. A. MazurJ. MerkelE. BaracchiniA. LusianiD. J. LangeG. PireddaZ. YasinC. L. DavisM. Lo VetereX. PrudentS. ParamesvaranHyun-chul KimHung-wen LiuG. GrosdidierA. P. WagnerM. SpitznagelR. GodangK. TackmannR. GametB. N. RatcliffJ. W. GaryM. MoriiMauro MorandinDouglas WrightD. H. WrightKenji HamanoC. PatrignaniH. L. LynchShu LiM. MorgantiV. TisserandEnrico RobuttiP. OngmongkolkulShawn Wesley HendersonT. M. HongT. SchalkDmytro KovalskyiR. RahmatR. SchwierzK. SuzukiA. PetrellaK. MishraJ. P. LeesM. A. MazzoniG. WormserJ. KaminskiA. AdametzM. BondioliM. MuneratoHeiko LackerT. J. GershonD. M. StromR. MessnerV. SordiniV. SordiniS. StrackaJ. StrubeS. H. RobertsonA. JawaheryM. ZitoH. NicholsonG. CibinettoMartino MargoniS. M. SpanierL. PiemonteseY. KaryotakisJames R. WilsonH. BriandJ. M. LoseccoC. C. YoungW. T. MeyerT. SchroederJ. P. BurkeA. OyangurenP. TarasE. P. SolodovW. F. WangE. GabathulerYu I. SkovpenW. R. InnesW. GradlF. C. PorterD. J. AsgeirssonS. B. ZainI. M. NugentJ. Garra TicoG. MancinelliP. D. JacksonC. A. HeuschJ. M. ThompsonN. B. SinevStephen Jacob SekulaC. HeartyW. DunwoodieG. M. VitugA. D. BukinChunhui ChenR. K. YamamotoG. De NardoR. C. FieldC. TouramanisD. E. HutchcroftM. GasperoC. DallapiccolaR. ContriM. BattagliaHerbert KochD. J. SummersV. SantoroM. TibbettsM. J. LewczukA. StocchiE. TorrenceI. EschrichH. R. BandJ. F. HirschauerG. FinocchiaroV. LuthW. S. LockmanR. F. SchwittersI. OfteM. ZhaoM. S. AlamD. B. MacfarlaneJ. ChauveauD. A. MilanesC. LuF. RengaS. CurryC. J. SchillingA. P. OnuchinA. SnyderI. BinghamM. BombenR. J. SobieC. VoenaG. EigenL. VitaleClaudio CampagnariF. Martinez-vidalDominik MüllerR. EckmannM. R. ConveryF. F. WilsonV. LepeltierA. G. DenigJ. E. BrauN. Lopez-marchM. DavierE. SalvatiC. VociF. FortiS. PacettiJ. A. KolbR. CowanC. K. ClarkeB. EchenardL. EsteveH. MarsiskeG. OnoratoB. W. DrummondO. HamonCrisostomo SciaccaD. AstonM. J. KobelK. WackerT. M. KarbachM. VerderiB. C. WrayD. BernardYu. G. KolomenskyI. NarskyM. T. GrahamL. A. CorwinJ. E. WatsonU. MallikH. JasperB. J. WogslandM. FritschC. CartaroA. M. LutzT. S. MiyashitaV. ZieglerB. T. MeadowsG. RavenW. J. WisniewskiP. LundE. C. MartinM. D. SokoloffP. R. BurchatOlga IgonkinaA. M. GabareenA. CalcaterraH. AtmacanG. LynchW. T. FordTim AdyeH. A. NealD. MonorchioM. L. KocianS. BettariniR. D. KassD. SuN. L. BlountJ. SchwieningS. PassaggioY. Y. GaoX. C. LouD. P. StokerM. BellisJ. AndersonGeorge LaffertyM. PiccoloJ. J. WalshH. W. ZhaoP. D. DaunceyG. SciollaT. HartmannA. M. RahimiP. FranchiniMatteo NegriniMirco AndreottiP. C. BloomA. R. BuzykaevG. P. Dubois-felsmannD. N. BrownA. PalanoA. LazzaroK. T. FloodS. SchenkM. T. AllenG. BatignaniM. L. PerlZ. J. GuoJoseph IzenCorrado AngeliniB. BhuyanR. AyadR. AyadF. LiuA. HafnerJ. KrosebergD. Lopes PegnaG. CavotoR. SaccoA. KhanD. S. BaileyN. GagliardiV. P. DruzhininC. BozziK. HonscheidC. A. ChavezH. L. SnoekA. RoodmanE. FioravantiE. I. RosenbergBrandon L. HartfielJ. P. ColemanR. J. BarlowF. AnulliK. Yu TodyshevM. H. SchuneRoland WaldiA. HaukeM. PosoccoF. FerroniM. MandelkernE. Ben-haimA. C. WrenJ. SerranoJ. R. FryAlessandro GazU. UwerP. PatteriR. StroiliC. H. ChengPaul Fraser HarrisonM. BarrettB. G. FulsomP. M. PatelI. L. OsipenkovStephen Robert WagnerJ. M. TuggleK. R. SchubertR. De SangroS. L. WuM. K. SullivanX. R. ChenF. FangW. H. TokiAidan Randle-condeW. KozaneckiA. M. EisnerL. O. WinstromR. CenciC. O. VuosaloA. ZalloG. Hamel De MonchenaultEleonora LuppiW. ParkColin JessopR. PrepostG. CastelliM. CarpinelliC. D. BuchananMaurizio BiasiniB. MalaescuM. V. PurohitJ. AlbertOwen Rosser LongA. SeidenG. B. MohantyJ. A. ErnstM. WeaverM. WittgenL. SunR. Baldini-ferroliAlberto CervelliD. KirkbyG. VasseurA. VolkAdrian John BevanT. PiatenkoB. FranekP. BiassoniE. GraugesR. FreyM. H. KelseyE. O. OlaiyaJ. IlicMario GiorgiM. A. SaeedM. SchramS. MorgantiSridhara DasuF. PalomboVivek SharmaS. SittJames D. OlsenL. T. KerthV. E. BlinovE. FeltresiBenjamin Henry HoobermanG. R. BonneaudD. W. G. S. LeithP. H. FisherG. CalderiniG. Della RiccaY. B. PanR. KowalewskiS. NelsonDenis DerkachBruce SchummX. NguyenL. BosisioAndrei GritsanL. GladneyR. FacciniF. FerrarottoA. J. LankfordF. Le DiberderJ. D. RichmanJ. I. YiJ. MarksG. A. CowanP. KimR. M. WhiteM. Franco SevillaB. PanI. M. PeruzziT. W. BeckS. I. SerednyakovPhilippe GrenierF. BianchiA. E. RubinMario PelliccioniG. JacksonJ. C. DingfelderA. J.s. SmithMaurizio MartinelliJ. PrendkiP. RoudeauL. Li GioiJ. DorfanJ. Va’vraS. AhmedJ. M. RoneyD. GambaMaria A. NagelLuca ListaPh LerusteN. ArnaudA. K. YarrituT. TanabeB. StuguJ. G. SmithE. M.t. PuccioK. E. AlwynD. J. BardM. PappagalloG. MarchioriN. SoniP. SonnekK. J. KnoepfelF. Di LodovicoBernard AubertD. J. PayneU. NauenbergPrafulla Kumar BeheraSilvano TosiE. LatourV. P. LombardoA. CecchiH. H. F. ChoiS. EmeryH. Kagan

subject

PhysicsNuclear and High Energy PhysicsParticle physicsMeson010308 nuclear & particles physicsElectron–positron annihilationNuclear TheoryHigh Energy Physics::PhenomenologyHadronElementary particleAstrophysics::Cosmology and Extragalactic AstrophysicsLambda01 natural sciencesNuclear physicsBaryonCharmed baryonsPion0103 physical sciencesHigh Energy Physics::ExperimentNuclear Experiment010306 general physics

description

We present a study of 649 +/- 35 e(+)e(-) -> c (c) over bar events produced at root s approximate to 10.6 GeV containing both Lambda(+)(c) baryon and a (Lambda) over bar (-)(c) antibaryon. The number observed is roughly 4 times that expected if the leading charmed hadron types are uncorrelated, confirming an observation by the CLEO Collaboration. We find a 2-jet topology in these events but very few additional baryons, demonstrating that the primary c and (c) over bar are predominantly contained in a correlated baryon-antibaryon system. In addition to the charmed baryons we observe on average 2.6 +/- 0.2 charged intermediate mesons, predominantly pions, carrying 65% of the remaining energy.

https://doi.org/10.1103/physrevd.82.091102