6533b833fe1ef96bd129c1e8

RESEARCH PRODUCT

Search for charged lepton flavor violation in narrow Y decays

X. R. ChenT. SchalkG. M. VitugM. A. MazzoniG. WormserD. E. HutchcroftC. DallapiccolaH. R. BandG. MancinelliM. LuW. S. LockmanM. BattagliaI. OfteEnrico RobuttiP. OngmongkolkulM. R. ConveryJ. P. BurkeA. OyangurenM. SpitznagelN. Lopez-marchAbner SofferC. HeartyD. J. SummersM. TibbettsE. TorrenceM. BombenR. J. SobieL. VitaleF. Martinez-vidalDominik MüllerT. SchroederA. VolkCh YècheMaurizio MartinelliA. G. DenigB. N. RatcliffJ. E. BrauW. F. WangR. GodangH. L. LynchW. DunwoodieE. SalvatiM. VerderiD. M. StromS. ParamesvaranM. T. AllenP. BiassoniB. FranekC. A. HeuschMaria Roberta MongeJ. A. MckennaA. PetrellaE. PaoloniG. Della RiccaJ. M. RoneyK. WackerElisa GuidoJ. L. RitchieE. O. OlaiyaM. A. SaeedM. SchramJ. R. FryE. GraugesYu I. SkovpenB. PanU. MallikC. CartaroR. SchwierzM. J. LewczukDmytro KovalskyiF. SimonettoMario GiorgiR. H. SchindlerM. BondioliM. MuneratoHeiko LackerC. H. ChengX. R. ChenR. FacciniF. FerrarottoA. J. LankfordF. Le DiberderF. PalomboVivek SharmaJames D. OlsenT. S. MiyashitaR. KroegerY. B. PanYu. G. KolomenskyA. T. WatsonJ. G. SmithDenis BernardF. LiuJ. P. LeesR. KowalewskiE. M.t. PuccioR. BartoldusC. TouramanisI. M. PeruzziSw. BanerjeeSridhara DasuS. SittM. J. CharlesJ. F. BenitezAchille StocchiS. StrackaA. JawaheryL. T. KerthMarcello RotondoM. SigamaniR. De SangroJ. D. RichmanP. LundS. L. WuCorrado AngeliniMarie Helene SchuneA. Y. RakitinCrisostomo SciaccaD. AstonA. CalcaterraH. AtmacanH. SchröderS. LuitzA. J. EdwardsA. P. WagnerMauro MorandinChunhui ChenG. CibinettoM. Lo VetereM. J. KobelL. M. CremaldiM. EbertC. C. YoungW. T. MeyerJ. KaminskiA. M. RulandW. H. TokiAidan Randle-condeE. FeltresiJ. M. ThompsonJ. MarksS. NelsonS. M. SpanierJ. F. HirschauerJ. F. HirschauerD. P. StokerE. I. RosenbergJ. P. ColemanG. A. CowanM. CarpinelliF. AnulliJ. ChauveauS. I. SerednyakovP. FranchiniS. K. SwainR. AndreassenA. N. YushkovP. KimV. SantoroK. T. FloodZ. YasinHyun-chul KimD. Lopes PegnaV. AzzoliniMatteo NegriniF. FortiR. M. WhiteM. BellisE. PrencipeL. DongM. Franco SevillaKenji HamanoH. B. CrawleyD. BaileyG. CastelliF. Di LodovicoAlessandro GazA. P. OnuchinF. BianchiColin JessopV. B. GolubevB. LindquistR. RahmatT. M. KarbachD. G. HitlinG. SciollaM. S. DubrovinA. PerezR. PrepostJ. P. MorrisA. J. MartinezJames R. WilsonH. BriandI. BinghamU. NauenbergH. W. WulsinPrafulla Kumar BeheraB. J. WogslandMaurizio BiasiniK. SuzukiA. E. RubinV. P. DruzhininC. BozziPhilippe GrenierB. SpaanMario PelliccioniA. M. EisnerV. E. BlinovM. FritschF. U. BernlochnerJ. SchwieningL. O. WinstromD. DerkachG. RizzoD. J. PayneD. J. PayneJ. StrubeNicola NeriT. S. MattisonK. HonscheidP. Del Amo SanchezL. LanceriC. A. ChavezSilvano TosiJ. C. DingfelderS. H. RobertsonG. LynchBenjamin Henry HoobermanG. R. BonneaudP. RoudeauL. Li GioiX. C. LouJ. J. WalshJ. Va’vraOwen Rosser LongJ. A. KolbA. SeidenA. M. RahimiT. E. LathamS. EmeryD. W. G. S. LeithM. L. KocianP. H. FisherR. C. FieldM. WeaverG. FinocchiaroG. CalderiniV. LuthG. B. MohantyM. S. AlamD. N. BrownHerbert KochS. CurryC. J. SchillingL. WangR. SaccoJ. SerranoH. MarsiskeJ. A. ErnstS. AhmedHanzhe LiuM. PosoccoA. SnyderF. F. WilsonG. EigenR. Baldini-ferroliD. GambaMaria A. NagelM. V. PurohitC. HastS. BettariniL. PiemonteseP. C. BloomJ. AndersonJ. AndersonT. LueckT. TanabeN. GuttmanD. KirkbyG. D. LaffertyM. L. PerlGabriele SimiZ. J. GuoB. StuguC. L. DavisR. GametRoger BarlowMartino MargoniE. C. MartinL. SunAlberto CervelliJ. AlbertG. P. Dubois-felsmannM. WittgenV. P. LombardoD. J. LangeD. J. LangeJoseph IzenG. PireddaA. M. LutzW. J. WisniewskiR. CenciC. CampagnariH. A. NealG. MarchioriC. O. VuosaloA. ZalloM. MoriiD. MonorchioE. GabathulerH. L. SnoekW. R. InnesW. GradlB. MalaescuA. CecchiF. C. PorterN. L. BlountAdrian John BevanV. SordiniBruce SchummD. J. AsgeirssonA. RoodmanA. HaukeH. JasperH. W. ZhaoV. ZieglerP. PatteriK. E. AlwynP. D. DaunceyS. PassaggioT. HartmannEleonora LuppiD. J. BardW. ParkM. BarrettK. Yu TodyshevT. J. GershonU. UwerR. StroiliR. ContriM. NicolaciH. H. F. ChoiStephen Jacob SekulaR. FreyM. H. KelseyG. Hamel De MonchenaultB. BhuyanM. PappagalloMirco AndreottiB. G. FulsomA. R. BuzykaevJ. IlicE. FioravantiOlga IgonkinaA. M. GabareenA. PalanoS. SchenkM. ZitoI. L. OsipenkovV. LepeltierRoland WaldiB. EchenardF. FerroniA. HafnerJ. KrosebergG. CavotoN. SoniX. NguyenP. SonnekW. T. FordTim AdyeK. J. KnoepfelR. D. KassR. D. KassA. J.s. SmithO. HamonN. GagliardiG. JacksonJ. PrendkiR. AyadPaul Fraser HarrisonAndrei GritsanD. DujmicElisa ManoniB. C. WrayS. PlayferP. J. ClarkRoberto CalabreseM. K. SullivanR. EckmannL. A. CorwinA. LazzaroD. SuJ. DorfanC. P. O'gradyAkram KhanD. BettoniA. V. TelnovP. M. PatelD. A. MilanesF. RengaY. Y. GaoM. PiccoloStephen Robert WagnerJ. M. TuggleG. OnoratoB. W. DrummondJ. OcarizG. BatignaniS. PacettiD. A. DollPh LerusteR. CowanK. R. SchubertN. ArnaudM. MandelkernA. K. YarrituJ. MerkelE. BaracchiniG. VasseurShawn Wesley HendersonJ. W. GaryB. T. MeadowsG. RavenM. T. GrahamA. PetzoldC. A. WestE. Ben-haimA. C. WrenJ. E. WatsonI. M. NugentJ. Garra TicoP. D. JacksonR. K. YamamotoD. H. WrightM. D. SokoloffP. R. BurchatC. PatrignaniShu LiV. TisserandM. ZhaoM. DavierJ. M. LoseccoT. J. WestS. B. ZainA. AdametzN. B. SinevM. SimardD. A. RobertsG. De NardoC. LuG. GrosdidierJ. Firmino Da CostaG. J. KingR. MessnerC. M. HawkesA. A. SalnikovR. F. SchwittersD. B. MacfarlaneP. TarasE. P. SolodovM. GasperoMatteo RamaS. PrellJames H CochranV. PoireauA. LusianiT. M. HongDouglas Wright

subject

Particle physicsPACS: 13.20.Gd 11.30.Hv 14.40.NdPhysics beyond the Standard ModelBABARGeneral Physics and AstronomyElementary particle01 natural sciencesPARTICLE PHYSICS; PEP2; BABARParticle identificationParticle decay0103 physical sciencesPEP2Grand Unified Theory010306 general physicsPhysics010308 nuclear & particles physicsBranching fractionHigh Energy Physics::PhenomenologySupersymmetryBABAR detectorHEPPARTICLE PHYSICSHigh Energy Physics::ExperimentFísica de partículesExperimentsLepton

description

Charged-lepton flavor-violating processes are unobservable in the standard model, but they are predicted to be enhanced in several extensions to the standard model, including supersymmetry and models with leptoquarks or compositeness. We present a search for such processes in a sample of 99 × 10 6 Υ ( 2 S ) decays and 117 × 10 6 Υ ( 3 S ) decays collected with the BABAR detector. We place upper limits on the branching fractions B ( Υ ( n S ) → e ± τ ∓ ) and B ( Υ ( n S ) → μ ± τ ∓ ) ( n = 2 , 3 ) at the 10 − 6 level and use these results to place lower limits of order 1 TeV on the mass scale of charged-lepton flavor-violating effective operators.

10.1103/physrevlett.104.151802https://hdl.handle.net/11368/2336484