6533b86dfe1ef96bd12ca8ce

RESEARCH PRODUCT

Study ofCPAsymmetry inB0−B¯0Mixing with Inclusive Dilepton Events

H. A. NealV. PrasadD. J. BardP. D. DaunceyJ. OcarizJ. W. GaryR. CheaibP. LewisJ. M. LoseccoAbner SofferW. J. WisniewskiG. J. KingT. S. MattisonA. R. BuzykaevM. S. AlamF. SimonettoJ. DorfanT. PulliamA. BeaulieuC. HastD. J. LangeG. PireddaJ. L. RitchieJ. ChauveauF. De MoriColin JessopDouglas WrightR. PrepostG. De NardoM. RöhrkenMaria Roberta MongeZ. C. HuardW. Panduro VazquezMatteo RamaR. CalabreseS. I. SerednyakovS. I. SerednyakovE. PaoloniM. HessGiulia CasarosaG. WormserA. StocchiAndrei SalnikovClaudio CampagnariH. L. LynchJ. R. FryC. H. ChengR. De SangroElisa ManoniD. AstonS. PlayferV. B. GolubevV. B. GolubevJames G. SmithHeiko LackerK. R. SchubertV. LuthW. S. LockmanR. Y. SoR. AndreassenT. SchroederPh LerusteN. ArnaudS. L. WuE. Ben-haimF. FortiS. PacettiA. PalanoD. BettoniM. Lo VetereA. RossiD. B. MacfarlaneG. RizzoAlessandro GazS. H. RobertsonS. PrellJames H CochranG. VasseurV. P. DruzhininV. P. DruzhininW. R. InnesK. T. FloodR. GorodeiskyTimothy GershonR. GodangA. CalcaterraHerbert KochGabriele SimiM. EbertA. OyangurenI. M. PeruzziM. SimardD. A. RobertsDavid HutchcroftM. PerlK. GriessingerD. LindemannJ. A. MckennaCorrado AngeliniJoseph IzenC. TouramanisStephen SekulaG. GrosdidierC. L. DavisBruce SchummT. M. HongR. CenciD. Lopes PegnaC. CartaroC. VoßMarcello RotondoX. C. LouBrian MeadowsA. RoodmanI. GarziaA. HafnerThomas LathamS. LuitzF. BianchiP. PatteriC. PatrignaniG. SciollaA. KhanL. M. CremaldiE. M. T. PuccioA. ZalloR. FacciniF. FerrarottoA. J. LankfordD. N. BrownV. TisserandC. BozziB. BhuyanJ. Va’vraYu G. KolomenskyB. G. FulsomF. Le DiberderS. DittrichE. FioravantiRoland WaldiJ. D. RichmanK. HonscheidB. OberhofM. J. LewczukR. F. SchwittersA. G. DenigF. FerroniA. M. RulandPablo Villanueva-perezDmytro KovalskyiE. A. KravchenkoE. A. KravchenkoAndrei GritsanL. PiemonteseChristopher WestJ. P. LeesM. R. ConveryG. A. CowanD. G. HitlinM. PosoccoRay Franklin CowanC. HeartySimon AkarF. PalomboCrisostomo SciaccaM. FritschG. OnoratoR. C. FieldA. M. LutzR. M. WhiteD. J. SummersE. GabathulerPaul Fraser HarrisonAlberto LusianiA. FilippiF. C. PorterNicola NeriG. RavenB. N. RatcliffM. BombenR. J. SobieM. D. SokoloffM. T. GrahamEleonora LuppiP. R. BurchatBiplab DeyL. VitaleFergus WilsonF. Martinez-vidalDominik MüllerA. AdametzS. PassaggioP. SonnekC. BüngerP. M. PatelStephen Robert WagnerP. RoudeauEnrico RobuttiP. OngmongkolkulL. Li GioiP. TarasH. AhmedA. JawaheryM. K. SullivanR. SaccoG. CibinettoD. GambaV. SantoroM. GasperoE. FeltresiS. MartellottiM. CarpinelliAbraham SeidenN. GuttmanA. M. EisnerJ. P. ColemanB. StuguG. MarchioriE. GraugesMario GiorgiA. J.s. SmithSw. BanerjeeJ. J. WalshD. W. G. S. LeithSridhara DasuG. CalderiniN. TasneemAidan Randle-condeB. HamiltonM. Franco SevillaG. R. BonneaudP. C. KimE. O. OlaiyaFlorian Urs BernlochnerT. LueckJames D. OlsenG. FinocchiaroK. Yu. TodyshevK. Yu. TodyshevB. SpaanJ. A. ErnstH. BriandW. GradlL. LanceriB. C. WrayD. SuV. PoireauM. PiccoloG. BatignaniM. MandelkernW. H. TokiH. W. WulsinY. B. PanR. KowalewskiM. V. PurohitJ. AlbertRafe SchindlerDenis DerkachMaurizio BiasiniB. MalaescuOwen Rosser LongA. P. OnuchinA. P. OnuchinA. P. OnuchinL. SunAlberto CervelliAdrian John BevanAlessandro PilloniD. R. PeimerE. P. SolodovE. P. SolodovT. S. MiyashitaJ. BougherM. BellisP. C. BloomG. P. Dubois-felsmannR. StroiliMarcin ChrzaszczAndrea Rodriguez PerezJames R. WilsonG. EigenH. H. F. ChoiS. EmeryMaurizio MartinelliJ. M. RoneyW. DunwoodieB. G. PushpawelaF. Di LodovicoD. J. PayneR. ContriL. T. KerthI. M. NugentB. EchenardD. BernardD. S. ChaoM. DavierS. BettariniGeorge LaffertyR. AyadOliver GrünbergMauro MorandinC. H. ChenS. M. SpanierVladimir BlinovVladimir BlinovVladimir BlinovT. LeddigH. R. BandF. AnulliM. VerderiA. SnyderU. MallikU. UwerRoger BarlowMartino MargoniM. J. LeeYu. I. SkovpenYu. I. SkovpenG. LynchW. T. FordTim AdyeR. D. Kass

subject

PhysicsParticle physicsComplete dataElectron–positron annihilationmedia_common.quotation_subjectGeneral Physics and AstronomyResonanceBaBar experimentAsymmetryStandard ModelNuclear physicsCP violationMixing (physics)media_common

description

We present a measurement of the asymmetry A_{CP} between same-sign inclusive dilepton samples l^{+}l^{+} and l^{-}l^{-} (l=e, μ) from semileptonic B decays in ϒ(4S)→BB[over ¯] events, using the complete data set recorded by the BABAR experiment near the ϒ(4S) resonance, corresponding to 471×10^{6} BB[over ¯] pairs. The asymmetry A_{CP} allows comparison between the mixing probabilities P(B[over ¯]^{0}→B^{0}) and P(B^{0}→B[over ¯]^{0}), and therefore probes CP and T violation. The result, A_{CP}=[-3.9±3.5(stat)±1.9(syst)]×10^{-3}, is consistent with the standard model expectation.

https://doi.org/10.1103/physrevlett.114.081801