6533b85efe1ef96bd12bfe61

RESEARCH PRODUCT

Measurement of Time-DependentCP-Violating Asymmetries inB0→ϕKS0,K+K−KS0, andη′KS0Decays

Mauro MorandinJordan NashO. HamonF. MuheimG. GrosdidierP. KimNicolas BergerS. M. SpanierA. LazzaroD. SuMathieu LangerY. KaryotakisJ. LamsaM. PiccoloC. De La VaissiereV. N. IvanchenkoRalph Müller-pfefferkornJanice Button-shaferD. CôtéG. BatignaniS. J. SekulaC. M. HawkesB. BrauN. De GrootC. H. ChengS. PetrakPhilippe GrenierAmir FarbinA. A. SalnikovG. R. BonneaudL. TantotJ. DorfanA. M. BoyarskiM. MandelkernA. RoodmanMarcello RotondoH. U. FlaecherA. ZghicheF. SimonettoR. H. SchindlerShanhui FanRoberto CalabreseB. C. ShenY. I. SkovpenR. MessnerS. BaileyA. HöckerJ. R. FryR. J. WilsonP. F. GiraudL. M. CremaldiT. PulliamP. WangG. RongE. J. HillP. E. KutterP. K. BeheraT. AllmendingerRoland WaldiStephane T'jampensR. GodangG. EigenH. M. LackerH. L. LynchJ. OcarizPh LerusteH. MarsiskeM. P. KellyV. EschenburgM. BarrettD. M. StromD. D. AltenburgF. FerroniE. CharlesFabio CossuttiD. BettoniR. KroegerB. MayerA. K. YarrituJ. P. LeesD. BoutignyT. J. HarrisonJ. W. GaryA. T. WatsonJ. Va'vraP. TarasE. P. SolodovTe LathamR. De SangroC. HeartyS. L. WuA. W. WeidemannJ.j. ReidyJ. M. BauerC. DallapiccolaD. J. SummersR. BartoldusS. BrunetD. J.j. MangeolSai-juan ChenD. A. BowermanPaul Fraser HarrisonPaul Fraser HarrisonJ. J. HollarS. F. GanzhurD. G. HitlinP. RankinH. R. BandR. E. SchmitzM. PivkR. J. SobieJ. BroseA. PerazzoR. S. DubitzkyV. HalyoC. VoenaF. Martinez-vidalA. CalcaterraS. YeDominik MüllerW. H. TokiH. J. BultenM. GasperoJ. L. RitchieA. M. LutzI. KitayamaW. S. LockmanQ. K. WongG. NesomM. MargoniM. BruinsmaL. GladneyW. J. WisniewskiJ. LibbyG. P. TaylorJ. M. LoseccoQ. L. ZengA. SohaG. TiozzoR. FacciniC. RoatT. C. PetersenF. FerrarottoA. J. LankfordI. M. PeruzziE. I. RosenbergG. W. LondonR. Ter-antonyanF. Le DiberderM. J.j. JohnM. R. ConveryMarcella BonaP. M. PatelA. N. YushkovL. Del BuonoF. SandrelliL. VitaleN. B. SinevR. AleksanV. B. GolubevG. De NardoH. K. HadavandJ. E. SundermannStephen Robert WagnerJ.h. PanettaJ. D. RichmanK. WangT. I. MeyerD. MonorchioP. J. OddoneD. P. StokerS. PassaggioR. EckmannZongfu YuM. J. CharlesR. ClausA. M. EisnerHui LiNicola NeriT. W. BeckS. I. SerednyakovT. SchalkF. BianchiC. LuD. JuddG. TherinF. BlancMaurizio PieriniE. FeltresiD. D. BrownL. ZhangJ. W. BerryhillI. EschrichT. S. MattisonD. A. SandersK. R. SchubertT. J. OrimotoD. FortinH. W. ZhaoP. D. DaunceyP. TanSergio GrancagnoloA. PetzoldMatteo NegriniG. Della RiccaDouglas WrightI. J. ForsterColin JessopClaudio CampagnariG. Hamel De MonchenaultR. S. PanviniA. B. BreonM. A. MazzoniD. HufnagelM. M. MacriG. WormserC. GattoR. LiuG. A. CowanR. G. JacobsenS. YangA. JawaheryS. D. FoulkesG. CibinettoC. K. LaeG. J. GrenierK. T. FloodMirco AndreottiD. Del ReL. Li GioiM. C. HodgkinsonC. HastD. J. LangeW. D. HulsbergenPierluigi PaolucciM. A. WinterR. PrepostT. HeldK. E. FordM. VerderiM. CarpinelliLydia RoosT. HadigG. RizzoM. V. PurohitG. PireddaA. DvoretskiiJ. C. ChenFrancesco FabozziFrancesco FabozziG. VasileiadisS. RicciardiJ. A. MckennaV. B. KoptchevN. DanielsonF. GaleazziD. J. BardM. MoriiS. AhmedD. GambaS. SchrenkR. J. SloaneW. M. BuggD. KovalskyiAlberto LusianiAjit MohapatraF. FortiA. P. OnuchinM. MorgantiM. MorgantiR. NogowskiG. CrosettiEnrico RobuttiM. WittgenK. K. GanU. MallikR. ContriM. Lo VetereJ. H. Von Wimmersperg-toellerC. CartaroC. T. DayBrandon L. HartfielJ. P. ColemanValerio ReMarkus CristinzianiW. KozaneckiMatteo RamaS. E. MorganF. X. YumicevaM. DickoppM. LegendreA. ChenB. A. PetersenC. L. BrownS. PrellE. ChenQ. H. GuoFergus WilsonM. C. SimaniBruce SchummCorrado AngeliniJ. SchwieningH. KimA. V. GritsanM. S. GillR. R. KoflerF. R. WapplerSh. RahatlouD. DujmicS. DittongoW. RoethelW. DunwoodieM. KrishnamurthyB. FranekP. PatteriJie ZhangJames H CochranYg KolomenskyB. LewandowskiG. BlaylockA. SofferG. MarchioriE. E. ElsenAlexis PompiliTetiana Hryn'ovaO. L. BuchmuellerA. LuD. E. WagonerR. W. KadelA. PalanoP. D. JacksonR. L. FlackR. K. YamamotoGabriele SimiV. P. DruzhininC. BozziH. P. PaarJ. E. BrauC. D. BuchananN. A. RoeP. PoropatM. PelizaeusG. P. Dubois-felsmannM. G. GreenLiliana TeodorescuF. GalloX. C. LouJ. J. WalshA. J. HartPeter ElmerA. M. RahimiG. WagnerS. ChristG. S. AbramsOlga IgonkinaC. L. DavisK. HonscheidC. A. ChavezR. GametL. BosisioP.f. ManfrediL. PiemonteseG. CavotoG. CavotoG. VuagninA. BuzzoR. J. BarlowF. BucciT. Cuhadar-donszelmannF. BelliniM. HaireJ. C. WilliamsTim AdyeV. G. ShelkovJ.m. GaillardM. DavierN. ChevalierM. PosoccoAlessio SartiC. TouramanisR. D. KassA. M. EichenbaumD. N. BrownD. LavinB. DahmesG. D. LaffertyUlrik EgedeA. W. BorglandA. J. EdwardsS. LaplaceC. A. HeuschA. SatpathyR. CowanM. K. SullivanE. TreadwellM. G. GreeneA. OlivasH. KaganA. HaukeG. KukartsevC. VociE. A. KravchenkoM. WeaverG. SciollaI. NarskyJ. ChauveauR. N. CahnMaria Roberta MongeM. PioppiC. M. CormackS. PlayferC. P. O'gradyE. GabathulerW. R. InnesA. MihalyiCrisostomo SciaccaD. AstonM. L. PerlJ. T. BoydF. BrochardM. FritschJoseph IzenS. S. HertzbachY. GroysmanAkram KhanL. WildenS. SaremiM. A. BaakH. NicholsonA. V. TelnovS. H. RobertsonE. PaoloniG. LynchHerbert KochP. SpradlinM. L. KocianG. MancinelliDenis BernardM. T. RonanK. GoetzenJ. L. HartonF. C. PorterE. TorrenceP. DavidB. StuguR. Baldini-ferroliW. A. WenzelA. SantroniVirginia AzzoliniW. BhimjiD. KirkbyG. VasseurV. E. BlinovH. L. SnoekD. S. BestL. M. MirT. R. McmahonT. A. GabrielT. PiatenkoYuehong XieD. W. G. S. LeithW. N. CottinghamV. MiftakovY. P. LauC. T. PotterMario GiorgiS. J. GowdyV. LillardG. SchottG. CalderiniS. MorgantiSridhara DasuA. J.s. SmithJulie MalclesR. BarateA. J.r. WeinsteinM. G. WilsonH. B. CrawleyA. HicheurP. J. ClarkM. PripsteinR. K. MommsenA. ZalloD. A. RobertsF. E. TaylorS. L. LevyF. CoudercF. ColecchiaE. O. OlaiyaM. A. SaeedK. PaickA. DorigoJunjie WuM. A. MazurR. J. ParryD. H. WrightC. PatrignaniN. R. BarlowV. TisserandEleonora LuppiJustin AlbertM. T. GrahamS. JayatillekeF. PalomboVivek SharmaJames D. OlsenL. T. KerthJ. A. KadykD. DongE. WonT. GlanzmanR. F. SchwittersY. S. ZhuJ. R. GaillardD. B. MacfarlaneJ. StelzerB. T. MeadowsG. RavenJ. I. YiM. D. SokoloffC. M. BrownM. SaleemP. R. BurchatSw BanerjeeR. C. FieldF. SalvatoreG. FinocchiaroV. LuthM. S. AlamA. SnyderB. N. RatcliffN. D. QiR. SchwierzM. ZitoA. E. BlinovC. C. YoungS. OttoB. SpaanH. BriandL. LanceriStéphane PlaszczynskiA. E. RubinS. WillocqD. ThiessenY. B. PanR. KowalewskiI. OfteJohn AllisonJ. SchubertDavide PiccoloR. FreyM. H. KelseyT. AbeV. E. OzcanM. BondioliJ. R. JohnsonJames R. WilsonWilliam T. FordM. SteinkeMaurizio BiasiniU. LangeneggerN. I. GeddesOwen Rosser LongA. SeidenG. B. MohantyG. B. MohantyJ. A. ErnstM. DattaF. Safai TehraniWouter VerkerkeA. J. LyonJ. J. BackJ. J. BackC. ThiebauxH. StaengleP. C. BloomAdrian John BevanW. T. MeyerN. S. KnechtF. AnulliPaul KyberdA. GaidotR. CapraC. YecheG. W. MortonM. H. SchuneT. BrandtR. StroiliH. A. NealG. P. GopalA. RydS. EmeryJ. M. RoneyLuca ListaC. BoreanJ. G. SmithM. B. NikolichF. Di LodovicoBernard AubertD. J. PayneU. NauenbergV. LepeltierA. SamuelM. BenayounSilvano TosiP. S. JacksonS. BettariniT. B. MooreS. LuitzD. C. WilliamsM. ChaoG. W. Brandenburg

subject

PhysicsParticle physicsMeson010308 nuclear & particles physicsElectron–positron annihilationmedia_common.quotation_subjectCenter (category theory)General Physics and AstronomyResonance01 natural sciencesAsymmetryB-factoryStandard ModelNuclear physicsParticle decayKEKB0103 physical sciencesPiCP violationB mesonHigh Energy Physics::Experiment010306 general physicsmedia_common

description

We present an improved measurement of $CP$-violation parameters in ${B}^{0}\ensuremath{\rightarrow}\ensuremath{\phi}{K}_{S}^{0}$, ${K}^{+}{K}^{\ensuremath{-}}{K}_{S}^{0}$, and ${\ensuremath{\eta}}^{\ensuremath{'}}{K}_{S}^{0}$ decays based on a $140\text{ }{\mathrm{f}\mathrm{b}}^{\ensuremath{-}1}$ data sample collected at the $\ensuremath{\Upsilon}(4S)$ resonance with the Belle detector at the KEKB energy-asymmetric ${e}^{+}{e}^{\ensuremath{-}}$ collider. One neutral $B$ meson is fully reconstructed in one of the specified decay channels, and the flavor of the accompanying $B$ meson is identified from its decay products. $CP$-violation parameters for each of the three modes are obtained from the asymmetries in the distributions of the proper-time intervals between the two $B$ decays. We find that the observed $CP$ asymmetry in the $B\ensuremath{\rightarrow}\ensuremath{\phi}{K}_{S}^{0}$ decay differs from the standard model (SM) expectation by 3.5 standard deviations, while the other cases are consistent with the SM.

https://doi.org/10.1103/physrevlett.91.261602