6533b82ffe1ef96bd12959df

RESEARCH PRODUCT

Evidence for thehb(1P)meson in the decayΥ(3S)→π0hb(1P)

R. CenciC. O. VuosaloP. LewisR. GodangR. GodangA. ZalloE. PrencipeAidan Randle-condeH. L. LynchD. M. StromG. CastelliF. LiuEleonora LuppiW. ParkChristopher WestR. SaccoYu I. SkovpenB. SpaanH. L. SnoekT. E. LathamD. DujmicA. G. DenigElisa ManoniJ. E. BrauE. SalvatiC. HeartyS. PlayferC. P. O'gradyMatteo RamaA. V. TelnovR. FreyD. J. SummersM. TibbettsMaurizio MartinelliP. BiassoniR. FacciniF. FerrarottoA. J. LankfordF. Le DiberderYu. G. KolomenskyM. H. KelseyS. PrellJames H CochranV. PoireauT. SchalkGiulia CasarosaM. A. MazzoniG. WormserR. J. SobieL. VitaleA. J.s. SmithR. C. FieldE. O. OlaiyaJ. D. RichmanD. A. DollM. T. GrahamA. PetzoldB. N. RatcliffA. LusianiS. ParamesvaranR. SchwierzCorrado AngeliniStephen SekulaElisa GuidoJ. L. RitchieF. Martinez-vidalDominik MüllerG. FinocchiaroV. LuthS. StrackaM. S. AlamA. SnyderI. M. NugentJ. Garra TicoF. F. WilsonC. C. YoungJ. M. RoneyW. T. MeyerM. SchramF. PalomboJ. G. SmithColin JessopR. PrepostDouglas WrightT. LueckGabriele SimiM. BondioliM. MuneratoHeiko LackerL. LanceriD. Lopes PegnaV. PrasadM. VerderiRoberto CalabreseG. JacksonT. M. HongT. SchroederJames D. OlsenA. AdametzJ. MarksDenis BernardE. M.t. PuccioO. HamonE. I. RosenbergJ. StrubeL. PiemonteseA. KhanD. S. BaileyV. P. DruzhininC. BozziV. B. GolubevB. LindquistF. AnulliL. T. KerthG. A. CowanA. N. YushkovC. L. DavisM. DavierW. DunwoodieR. AndreassenD. A. RobertsK. HonscheidA. OyangurenF. SimonettoA. PalanoI. OfteJ. OcarizR. H. SchindlerC. A. ChavezAlessandro GazM. WeaverS. H. RobertsonP. KimP. TarasE. P. SolodovChunhui ChenR. M. WhiteM. Franco SevillaW. F. WangG. GrosdidierR. J. BarlowS. BettariniR. Baldini-ferroliE. GabathulerA. HafnerJ. KrosebergG. CavotoW. R. InnesW. GradlJ. W. GaryP. LundD. KirkbyG. VasseurY. B. PanV. P. LombardoB. C. WrayEnrico RobuttiP. OngmongkolkulC. CartaroU. MallikA. CalcaterraH. AtmacanJ. DorfanJ. ChauveauM. PosoccoHerbert KochK. T. FloodS. CurryC. J. SchillingJ. R. FryR. KowalewskiN. GagliardiF. C. PorterC. TouramanisR. KroegerD. J. AsgeirssonM. J. LewczukA. Y. RakitinM. GasperoMarcello RotondoM. SigamaniH. W. WulsinC. BüngerC. H. ChengT. S. MiyashitaShouheng SunS. NelsonL. A. CorwinD. A. MilanesD. SuD. P. StokerMarco BombenA. JawaheryJ. M. LoseccoE. A. KravchenkoV. E. BlinovJ. P. ColemanA. J. EdwardsPhilippe GrenierL. M. CremaldiG. CibinettoR. De SangroV. ZieglerMatteo NegriniP. PatteriE. FeltresiCrisostomo SciaccaD. AstonN. B. SinevDenis DerkachG. P. Dubois-felsmannH. H. F. ChoiA. P. OnuchinM. J. KobelG. SciollaB. BhuyanS. L. WuB. HamiltonR. F. SchwittersE. GraugesI. BinghamX. R. ChenS. EmeryM. PiccoloB. G. FulsomM. T. AllenMario GiorgiM. EbertG. R. BonneaudJ. A. KolbM. CarpinelliPh LerusteP. RoudeauI. L. OsipenkovN. ArnaudA. M. RulandL. Li GioiMaurizio BiasiniS. PacettiJ. Va’vraD. B. MacfarlaneR. EckmannJ. SchwieningT. S. MattisonW. H. TokiSridhara DasuD. LindemannB. MalaescuR. CowanP. J. ClarkF. U. BernlochnerG. BatignaniD. W. G. S. LeithA. P. WagnerMauro MorandinA. K. YarrituF. Di LodovicoR. AyadR. AyadA. StocchiD. G. HitlinS. SittM. L. PerlX. C. LouG. OnoratoA. M. RossiZ. J. GuoC. HastJ. J. WalshA. M. LutzOwen Rosser LongW. J. WisniewskiG. RizzoG. J. KingD. J. LangeG. PireddaA. SeidenD. GambaMaria A. NagelM. S. DubrovinJ. E. WatsonD. BettoniM. MandelkernM. MoriiH. AhmedD. J. PayneU. NauenbergD. N. BrownPrafulla Kumar BeheraS. PassaggioG. CalderiniM. K. SullivanE. Ben-haimK. E. AlwynA. C. WrenJ. A. ErnstJoseph IzenA. J. MartinezN. GuttmanB. T. MeadowsG. RavenClaudio CampagnariB. StuguNicola NeriA. M. EisnerA. RoodmanA. PerezH. A. NealD. MonorchioD. J. BardT. J. GershonN. L. BlountM. D. SokoloffP. R. BurchatS. M. SpanierG. Hamel De MonchenaultBruce SchummL. SunR. ContriAlberto CervelliM. NicolaciM. PappagalloG. MarchioriG. D. LaffertyF. FortiP. D. DaunceyE. FioravantiT. PulliamRoland WaldiF. FerroniI. GarziaD. H. WrightT. HartmannAdrian John BevanM. V. PurohitC. PatrignaniShu LiV. TisserandA. R. BuzykaevDmytro KovalskyiP. SonnekK. J. KnoepfelJ. AlbertM. WittgenJ. P. LeesA. A. SalnikovG. M. VitugPaul Fraser HarrisonB. EchenardG. De NardoD. E. HutchcroftM. FritschC. LuI. M. PeruzziV. SantoroSw. BanerjeeC. DallapiccolaX. NguyenJ. M. ThompsonG. LynchT. LeddigP. M. PatelStephen Robert WagnerC. L. LeeAndrei GritsanM. L. KocianH. R. BandK. R. SchubertS. I. SerednyakovF. BianchiH. B. CrawleyH. SchröderS. LuitzA. E. RubinW. S. LockmanMario PelliccioniKenji HamanoR. RahmatM. R. ConveryN. Lopez-marchE. TorrenceH. JasperL. WangA. M. GabareenW. T. FordTim AdyeR. D. KassM. BellisHyun-chul KimK. SuzukiMartino MargoniJames R. WilsonH. BriandG. EigenP. C. BloomA. LazzaroK. Yu TodyshevM. H. SchuneU. UwerR. StroiliAbner SofferCh YècheC. LindsayMaria Roberta MongeJ. A. MckennaE. PaoloniJ. Firmino Da CostaR. BartoldusJ. F. BenitezM. Lo Vetere

subject

PhysicsNuclear and High Energy PhysicsAntiparticleMeson010308 nuclear & particles physicsBranching fractionElectron–positron annihilationHadron01 natural sciencesNuclear physicsParticle decay0103 physical sciences010306 general physicsDimensionless quantityLepton

description

Using a sample of 122×10^6 Υ(3S) events recorded with the BABAR detector at the PEP-II asymmetric-energy e+e- collider at SLAC, we search for the h_b(1P) spin-singlet partner of the P-wave χ_(bJ)(1P) states in the sequential decay Υ(3S)→π^0h_b(1P), hb(1P)→γη_b(1S). We observe an excess of events above background in the distribution of the recoil mass against the π0 at mass 9902±4(stat)±2(syst)  MeV/c^2. The width of the observed signal is consistent with experimental resolution, and its significance is 3.1σ, including systematic uncertainties. We obtain the value (4.3±1.1(stat)±0.9(syst))×10^(-4) for the product branching fraction B(Υ(3S)→π^0h_b)×B(h_b→γη_b).

https://doi.org/10.1103/physrevd.84.091101