6533b835fe1ef96bd129fe6b
RESEARCH PRODUCT
Evidence for the Rare DecayB→K*ℓ+ℓ−and Measurement of theB→Kℓ+ℓ−Branching Fraction
Douglas WrightR. MessnerG. RongRoberto CalabreseB. C. ShenS. SaremiKazuo AbeJ. OcarizV. MiftakovCorrado AngeliniR. R. KoflerC. A. HeuschM. KrishnamurthyA. J.s. SmithD. E. WagonerE. P. SolodovT. J. HarrisonO. L. BuchmuellerD. Cote-ahernGabriele SimiJ. H. Von Wimmersperg-toellerE. W. VarnesJohn AllisonC. L. DavisR. GametJ. Va'vraM. G. WilsonD. A. RobertsF. E. TaylorG. GrosdidierJ.j. ReidyMarcello RotondoC. BozziH. U. FlaecherA. ZghicheA. HicheurF. BlancK. HonscheidM. HaireJ. C. WilliamsE. A. KravchenkoT. GlanzmanA. M. EisnerJ. Button-shaferR. J. WilsonJ. ChauveauR. F. SchwittersM. S. GillD. J. KnowlesJ. StelzerD. B. MacfarlaneS. OttoJ. W. LamsaA. BuzzoB. T. MeadowsG. RavenJ. I. YiM. D. SokoloffC. M. BrownM. SaleemP. R. BurchatA. ZalloG. VaitsasN. ChevalierM. PosoccoL. M. CremaldiJ. RoyHui LiC. VociBruce SchummA. KurupB. DahmesN. K. WatsonM. C. HodgkinsonW. M. BuggD. KovalskyiAlberto LusianiF. SimonettoJ. SchubertDavide PiccoloJ. M. LoseccoJ.e. SwainN. B. SinevMarie Helene SchuneF. ColecchiaR. W. KadelA. PalanoP. KimM. PivkJ. BroseA. CalcaterraRobert N. CahnSergio GrancagnoloS. F. GanzhurCrisostomo SciaccaD. AstonG. Hamel De MonchenaultR. S. PanviniT. ColbergG. MancinelliA. LuA. RomosanDenis BernardR. H. SchindlerH. KaganA. W. BorglandB. SpaanC. T. DayM. PioppiG. S. AbramsJ. L. RitchieKrisztian PetersV. E. OzcanD. FalciaiV. E. BlinovD. G. HitlinP. RankinC. RoatS. YeF. JacksonFergus WilsonE. I. RosenbergBrandon L. HartfielJ. P. ColemanG. SciollaD. LavinK. GoetzenG. CavotoG. CavotoG. VuagninI. KitayamaS. I. SerednyakovJ. L. HartonP. PoropatA. HöckerM. L. PerlL. BosisioH. BriandClaudio CampagnariEleonora LuppiS. PlayferP. StrotherY. KaryotakisM. V. PurohitD. P. StokerH. A. TanakaA. B. BreonAjit MohapatraJustin AlbertL. WildenMatteo NegriniNicola NeriS. JayatillekeS. DittongoUlrik EgedeJ. T. BoydR. KroegerC. P. O'gradyAkram KhanD. BoutignyJoseph IzenR. FreyL. TantotM. H. KelseyG. LynchH. K. HadavandRalph Müller-pfefferkornCh YècheP. C. BloomM. CarpinelliAndrei GritsanA. W. WeidemannA. D. BukinL. LanceriF. FortiA. T. WatsonM. A. BaakS. H. RobertsonT. AbeE. TorrenceV. N. IvanchenkoC. HastW. RoethelMichael T RonanR. CowanH. P. PaarJ. E. BrauG. R. BonneaudMaddie Mc KayR. PrepostJ. DorfanG. P. TaylorD. J.j. MangeolT. SchalkD. DongP. DavidP. PatteriT. HuS. BaileyH. MarsiskeP. F. HarrisonJ. W. BerryhillM. BondioliJ. R. JohnsonStephane T'jampensA. M. BoyarskiPaul KyberdG. KukartsevF. BucciM. J.j. JohnLydia RoosM. MorgantiD. W. G. S. LeithPhilippe GrenierR. GodangR. NogowskiC. M. HawkesM. TurriJ.m. GaillardM. A. MazzoniG. WormserH. SchmueckerC. D. BuchananS. J. LeeP. A. HartC. GattoA. N. YushkovG. De NardoTe LathamH. M. LackerWolfgang WalkowiakH. L. LynchE. WonY. S. ZhuS. BettariniValerio ReJ. R. GaillardP. J. ClarkPierre-francois GiraudA. SantroniVirginia AzzoliniJ. P. LeesPierluigi PaolucciE. J. HillW. N. CottinghamS. LaplaceP. E. KutterP. K. BeheraAlessio SartiR. CapraI. NarskyF. BrochardS. S. HertzbachMaria Roberta MongeA. MihalyiSai-juan ChenR. C. FieldF. SalvatoreG. W. MortonY. GroysmanToyoko OrimotoAmir FarbinA. A. SalnikovR. G. JacobsenB. BrauJ. A. MckennaJeffrey RichmanPh LerusteN. De GrootA. OlivasM. WeaverC. LuD. JuddA. M. LutzM. BruinsmaM. P. KellyW. DunwoodieS. LuitzD. D. AltenburgW. J. WisniewskiA. J. EdwardsN. DanielsonS. WillocqP. D. JacksonR. L. FlackF. GaleazziG. Della RiccaPatrick RobbeD. ThiessenT. BrandtR. StroiliH. A. NealK. K. GanB. MayerR. K. YamamotoM. L. KocianS. E. MorganA. RydM. G. GreenE. PaoloniGeorge LaffertyG. FinocchiaroV. LuthM. S. AlamD. M. StromT. I. MeyerV. B. KoptchevH. W. ShorthouseS. AhmedD. GambaC. H. ChengS. PetrakP.b. VidalR. Baldini-ferroliW. BhimjiD. KirkbyG. VasseurB. FranekS. PassaggioJordan NashO. HamonG. P. Dubois-felsmannE. CharlesHyun-chul KimF. X. YumicevaL. PiemonteseA. HaukeG. BlaylockT. HeldK. E. FordL. VitaleJ. R. FryM. DickoppJ. SchwieningJohn BackG. CalderiniC. E. MarkerD. S. BestP. J. OddoneJ. StarkR. BartoldusA. SnyderT. R. McmahonA. LazzaroM. DavierA. RoodmanM. K. SullivanD. SuY. B. PanR. KowalewskiT. PulliamW. C. Van HoekWilliam T. FordM. SteinkeE. TreadwellM. M. MacriR. S. DubitzkyT. S. MattisonD. A. SandersS. EmeryMathieu LangerD. BettoniYu I. SkovpenE. ChenQ. H. GuoB. StuguC. HeartyZongfu YuD. DujmicR. De SangroS. L. WuU. LangeneggerS. BrunetH. W. ZhaoP. D. DaunceyD. Del ReC. T. PotterG. J. GrenierYu G. KolomenskyPeter ElmerA. JawaheryE. Grauges-pousM. PiccoloV.g. ShelkovG. WagnerG. CibinettoP. SandersM. PripsteinD. J. LangeH. NicholsonM. E. LeviR. J. SloaneHerbert KochN. I. GeddesRoland WaldiE. GabathulerX. C. LouJ. J. WalshS. ChristW. R. InnesG. MarchioriV. HalyoW. H. TokiD. N. BrownF. FerroniMario GiorgiS. MorgantiD. J. SummersSridhara DasuD. A. BowermanF. C. PorterI. OfteG. EigenRoger BarlowMartino MargoniL. GladneyMirco AndreottiR. FacciniR. FacciniF. FerrarottoA. J. LankfordA. J.r. WeinsteinCatherine Kirsty MackayE. O. OlaiyaF. Safai TehraniA. P. OnuchinF. Le DiberderS. M. XellaC. CartaroMarcella BonaT. B. MooreV. B. GolubevG. TherinB. A. PetersenC. L. BrownG. PireddaA. DvoretskiiJ. C. ChenM. MoriiA. M. EichenbaumB. N. RatcliffAlessandra FortiMaurizio BiasiniA. PerazzoC. VoenaF. Martinez-vidalF. Martinez-vidalDominik MüllerStéphane PlaszczynskiV. EschenburgNicola CavalloNicola CavalloM. PelizaeusA. SohaP. M. PatelG. BatignaniS. J. SekulaM. MandelkernI. EschrichStephen Robert WagnerJ.h. PanettaV. Del GambaK. R. SchubertN. D. QiR. SchwierzD. FortinF. BelliniJ.h. WeatherallLijun ZhangMaurizio PieriniOwen Rosser LongF. R. WapplerSh. RahatlouQ. K. WongT. A. GabrielD.p. CoupalM. Lo-vetereF. PalomboVivek SharmaJames D. OlsenA. SeidenM. LegendreP. TarasE. MalyJ. A. ErnstJ. BeringerC. C. YoungG. A. CowanT. Cuhadar-donszelmannJ. ZhangC. K. LaeP.f. ManfrediC. TouramanisW. T. MeyerN. KuznetsovaK. T. FloodG. RizzoS. GeorgeM. DattaM. ZitoWouter VerkerkeTim AdyeA. J. LyonP. WangR. ContriR. D. KassCh ThiebauxH. StaengleJohann Cohen-tanugiAdrian John BevanR. K. MommsenT. C. PetersenR. LiuC. BoreanM. GasperoS. L. LevyW. KozaneckiG. W. LondonK. PaickV. LepeltierA. DorigoJunjie WuM. A. MazurM. BenayounG. TiozzoR. J. ParryMatteo RamaD. H. WrightC. PatrignaniV. TisserandD. C. WilliamsS. PrellM. ChaoS. J. GowdyV. LillardW.a. WenzelJames H CochranB. LewandowskiA. SofferR. AleksanF. GalloN. R. BarlowA. K. MckemeyL. Del BuonoF. SandrelliR. EckmannS. YangFrancesco FabozziFrancesco FabozziG. VasileiadisI. M. PeruzziT. W. BeckF. BianchiD. D. BrownD. HufnagelM. A. WinterM. VerderiT. HadigG. CrosettiEnrico RobuttiU. MallikJ. A. KadykF. AnulliA. GaidotG. P. GopalMauro MorandinF. MuheimJ. M. RoneyNicolas BergerS. M. SpanierLuca ListaLluisa-maria MirJ. G. SmithC. P. JessopA. V. TelnovR. C. PennyJ. M. BauerC. DallapiccolaCh De La VaissièreH. R. BandR. E. SchmitzW. S. LockmanJ. F. KralM. R. ConveryF. Di LodovicoG. SchottBernard AubertD. J. PayneU. NauenbergA. SamuelSilvano TosiV. BrigljevićC. LeclercL. T. KerthR. BarateSw. BanerjeeNatalie A. RoeH. B. CrawleyS. RicciardiAlexis PompiliTetiana Hryn'ovasubject
PhysicsParticle physics010308 nuclear & particles physicsBranching fractionElectron–positron annihilationIsospin0103 physical sciencesAnalytical chemistryGeneral Physics and AstronomyIntermediate state010306 general physics01 natural sciencesLeptondescription
We present evidence for the flavor-changing neutral current decay B-->K-*.(+).(-) and a measurement of the branching fraction for the related process B-->K.(+).(-), where .(+).(-) is either an e(+)e(-) or a mu(+)mu(-) pair. These decays are highly suppressed in the standard model, and they are sensitive to contributions from new particles in the intermediate state. The data sample comprises 123x10(6) Y(4S)-->B (B) over bar decays collected with the BABAR detector at the SLAC PEP-II e(+)e(-) storage ring. Averaging over K-(*) isospin and lepton flavor, we obtain the branching fractions B(B-->Kl(+)l(-))=(0.65(-0.13)(+0.14)+/-0.04)x10(-6) and B(B-->K(*)l(+)l(-))=(0.88(-0.29)(+0.33)+/-0.10)x10(-6), where the uncertainties are statistical and systematic, respectively. The significance of the B-->Kl(+)l(-) signal is over 8sigma, while for B-->K(*)l(+)l(-) it is 3.3sigma.
year | journal | country | edition | language |
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2003-11-25 | Physical Review Letters |