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. 2009 Aug 21;103(8):081803.
doi: 10.1103/PhysRevLett.103.081803. Epub 2009 Aug 18.

Search for dimuon decays of a light scalar boson in radiative transitions Upsilon-->gammaA0

B Aubert  1 Y KaryotakisJ P LeesV PoireauE PrencipeX PrudentV TisserandJ Garra TicoE GraugesM MartinelliA PalanoM PappagalloG EigenB StuguL SunM BattagliaD N BrownL T KerthYu G KolomenskyG LynchI L OsipenkovE PetiguraK TackmannT TanabeC M HawkesN SoniA T WatsonH KochT SchroederD J AsgeirssonB G FulsomC HeartyT S MattisonJ A McKennaM BarrettA KhanA Randle-CondeV E BlinovA D BukinA R BuzykaevV P DruzhininV B GolubevA P OnuchinS I SerednyakovYu I SkovpenE P SolodovK Yu TodyshevM BondioliS CurryI EschrichD KirkbyA J LankfordP LundM MandelkernE C MartinD P StokerH AtmacanJ W GaryF LiuO LongG M VitugZ YasinV SharmaC CampagnariT M HongD KovalskyiM A MazurJ D RichmanT W BeckA M EisnerC A HeuschJ KrosebergW S LockmanA J MartinezT SchalkB A SchummA SeidenL WangL O WinstromC H ChengD A DollB EchenardF FangD G HitlinI NarskyP OngmongkolkuT PiatenkoF C PorterR AndreassenG MancinelliB T MeadowsK MishraM D SokoloffP C BloomW T FordA GazJ F HirschauerM NagelU NauenbergJ G SmithS R WagnerR AyadW H TokiR J WilsonE FeltresiA HaukeH JasperT M KarbachJ MerkelA PetzoldB SpaanK WackerM J KobelR NogowskiK R SchubertR SchwierzA VolkD BernardE LatourM VerderiP J ClarkS PlayferJ E WatsonM AndreottiD BettoniC BozziR CalabreseA CecchiG CibinettoE FioravantiP FranchiniE LuppiM MuneratoM NegriniA PetrellaL PiemonteseV SantoroR Baldini-FerroliA CalcaterraR de SangroG FinocchiaroS PacettiP PatteriI M PeruzziM PiccoloM RamaA ZalloR ContriE GuidoM Lo VetereM R MongeS PassaggioC PatrignaniE RobuttiS TosiK S ChaisanguanthumM MoriiA AdametzJ MarksS SchenkU UwerF U BernlochnerV KloseH M LackerD J BardP D DaunceyM TibbettsP K BeheraM J CharlesU MallikJ CochranH B CrawleyL DongV EygesW T MeyerS PrellE I RosenbergA E RubinY Y GaoA V GritsanZ J GuoN ArnaudJ BéquilleuxA D'OrazioM DavierD DerkachJ Firmino da CostaG GrosdidierF Le DiberderV LepeltierA M LutzB MalaescuS PruvotP RoudeauM H SchuneJ SerranoV SordiniA StocchiG WormserD J LangeD M WrightI BinghamJ P BurkeC A ChavezJ R FryE GabathulerR GametD E HutchcroftD J PayneC TouramanisA J BevanC K ClarkeF Di LodovicoR SaccoM SigamaniG CowanS ParamesvaranA C WrenD N BrownC L DavisA G DenigM FritschW GradlA HafnerK E AlwynD BaileyR J BarlowG JacksonG D LaffertyT J WestJ I YiJ AndersonC ChenA JawaheryD A RobertsG SimiJ M TuggleC DallapiccolaE SalvatiR CowanD DujmicP H FisherS W HendersonG SciollaM SpitznagelR K YamamotoM ZhaoP M PatelS H RobertsonM SchramP BiassoniA LazzaroV LombardoF PalomboS StrackaJ M BauerL CremaldiR GodangR KroegerP SonnekD J SummersH W ZhaoM SimardP TarasH NicholsonG De NardoL ListaD MonorchioG OnoratoC SciaccaG RavenH L SnoekC P JessopK J KnoepfelJ M LoSeccoW F WangL A CorwinK HonscheidH KaganR KassJ P MorrisA M RahimiJ J RegensburgerS J SekulaQ K WongN L BlountJ BrauR FreyO IgonkinaJ A KolbM LuR RahmatN B SinevD StromJ StrubeE TorrenceG CastelliN GagliardiM MargoniM MorandinM PosoccoM RotondoF SimonettoR StroiliC VociP del Amo SanchezE Ben-HaimG R BonneaudH BriandJ ChauveauO HamonPh LerusteG MarchioriJ OcarizA PerezJ PrendkiS SittL GladneyM BiasiniE ManoniC AngeliniG BatignaniS BettariniG CalderiniM CarpinelliA CervelliF FortiM A GiorgiA LusianiM MorgantiN NeriE PaoloniG RizzoJ J WalshD Lopes PegnaC LuJ OlsenA J S SmithA V TelnovF AnulliE BaracchiniG CavotoR FacciniF FerrarottoF FerroniM GasperoP D JacksonL Li GioiM A MazzoniS MorgantiG PireddaF RengaC VoenaM EbertT HartmannH SchröderR WaldiT AdyeB FranekE O OlaiyaF F WilsonS EmeryL EsteveG Hamel de MonchenaultW KozaneckiG VasseurCh YècheM ZitoM T AllenD AstonR BartoldusJ F BenitezR CenciJ P ColemanM R ConveryJ C DingfelderJ DorfanG P Dubois-FelsmannW DunwoodieR C FieldM Franco SevillaA M GabareenM T GrahamP GrenierC HastW R InnesJ KaminskiM H KelseyH KimP KimM L KocianD W G S LeithS LiB LindquistS LuitzV LuthH L LynchD B MacFarlaneH MarsiskeR MessnerD R MullerH NealS NelsonC P O'GradyI OfteM PerlB N RatcliffA RoodmanA A SalnikovR H SchindlerJ SchwieningA SnyderD SuM K SullivanK SuzukiS K SwainJ M ThompsonJ Va'vraA P WagnerM WeaverC A WestW J WisniewskiM WittgenD H WrightH W WulsinA K YarrituC C YoungV ZieglerX R ChenH LiuW ParkM V PurohitR M WhiteJ R WilsonP R BurchatA J EdwardsT S MiyashitaS AhmedM S AlamJ A ErnstB PanM A SaeedS B ZainA SofferS M SpanierB J WogslandR EckmannJ L RitchieA M RulandC J SchillingR F SchwittersB C WrayB W DrummondJ M IzenX C LouF BianchiD GambaM PelliccioniM BombenL BosisioC CartaroG Della RiccaL LanceriL VitaleV AzzoliniN Lopez-MarchF Martinez-VidalD A MilanesA OyangurenJ AlbertSw BanerjeeB BhuyanH H F ChoiK HamanoG J KingR KowalewskiM J LewczukI M NugentJ M RoneyR J SobieT J GershonP F HarrisonJ IlicT E LathamG B MohantyE M T PuccioH R BandX ChenS DasuK T FloodY PanR PrepostC O VuosaloS L WuBABAR Collaboration
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Free article

Search for dimuon decays of a light scalar boson in radiative transitions Upsilon-->gammaA0

B Aubert et al. Phys Rev Lett. .
Free article

Abstract

We search for evidence of a light scalar boson in the radiative decays of the Upsilon(2S) and Upsilon(3S) resonances: Upsilon(2S,3S)-->gammaA0, A0-->mu+mu-. Such a particle appears in extensions of the standard model, where a light CP-odd Higgs boson naturally couples strongly to b quarks. We find no evidence for such processes in the mass range 0.212 < or = mA0 < or = 9.3 GeV in the samples of 99 x 10(6) Upsilon(2S) and 122 x 10(6) Upsilon(3S) decays collected by the BABAR detector at the SLAC PEP-II B factory and set stringent upper limits on the effective coupling of the b quark to the A0. We also limit the dimuon branching fraction of the etab meson: B(etab-->mu+mu-)<0.9% at 90% confidence level.

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