6533b832fe1ef96bd129abc1

RESEARCH PRODUCT

Measurement ofCPviolation observables and parameters for the decaysB±→DK*±

B. AubertY. 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. OsipenkovK. 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. OngmongkolkulT. 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. SchwierzD. 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. LackerT. LueckA. VolkD. 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. StrackaL. 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. WangG. BenelliL. A. CorwinK. HonscheidH. KaganR. KassJ. P. MorrisA. M. RahimiS. 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. WilsonM. BellisP. 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. Wu

subject

PhysicsNuclear and High Energy PhysicsParticle physics010308 nuclear & particles physicsBranching fractionElectron–positron annihilationSigma01 natural sciencesOmegaB-factoryParticle decay0103 physical sciencesD mesonCP violation010306 general physics

description

We study the decay B--> DK*- using a sample of 379x10(6) Upsilon(4S)-> BB events collected with the BABAR detector at the PEP-II B factory. We perform a Gronau-London-Wyler analysis where the D meson decays into either a CP-even (CP+) eigenstate (K+K-, pi(+)pi(-)), CP-odd (CP-) eigenstate (K-S(0)pi(0), K-S(0)phi, K-S(0)omega) or a non-CP state (K-pi(+)). We also analyze D meson decays into K+pi(-) from a Cabibbo-favored D-0 decay or doubly suppressed D-0 decay [Atwood-Dunietz-Soni (ADS) analysis]. We measure observables that are sensitive to the Cabibbo-Kobayashi-Maskawa angle gamma: the partial-rate charge asymmetries A(CP +/-), the ratios R-CP +/- of the B-decay branching fractions in CP +/- and non-CP decay, the ratio R-ADS of the charge-averaged branching fractions, and the charge asymmetry A(ADS) of the ADS decays: A(CP+)=0.09 +/- 0.13 +/- 0.06, A(CP-)=-0.23 +/- 0.21 +/- 0.07, RCP+=2.17 +/- 0.35 +/- 0.09, RCP-=1.03 +/- 0.27 +/- 0.13, R-ADS=0.066 +/- 0.031 +/- 0.010, and A(ADS)=-0.34 +/- 0.43 +/- 0.16, where the first uncertainty is statistical and the second is systematic. Combining all the measurements and using a frequentist approach yields the magnitude of the ratio between the Cabibbo-suppressed and favored amplitudes, r(B)=0.31 with a one (two) sigma confidence level interval of [0.24, 0.38] ([0.17, 0.43]). The value r(B)=0 is excluded at the 3.3 sigma level. A similar analysis excludes values of gamma in the intervals [0, 7]degrees, [55, 111]degrees, and [175, 180]degrees ([85, 99]degrees) at the one (two) sigma confidence level.

https://doi.org/10.1103/physrevd.80.092001