6533b872fe1ef96bd12d377a

RESEARCH PRODUCT

Measurements of charm mixing and CP violation using D0→K±π∓ decays

B. RachwalA. VallierJ. MccarthyR. SantacesariaJ. JalochaI. ShapovalVarvara BatozskayaL. ShekhtmanL. ShekhtmanA. Dosil SuárezVictor CocoAlbert Comerma-montellsJonas RademackerA. Puig NavarroD. Campora PerezV. KudryavtsevD. R. WardPierre BilloirM. J. CharlesA. DavisM. BaalouchG. PensoSebastien ValatMarco DorigoMarco AdinolfiP. M. ManningHans DijkstraMaxim BorisyakMark HatchLouis HenryTara ShearsL. Silva De OliveiraAnton PoluektovAnton PoluektovLorenzo SestiniAlbert BurscheJ. WimberleyMarkus FrankL. M. MassacrierT. J. V. BowcockGiulia TellariniKarlis DreimanisD. HillMaurizio MartinelliM. SzczekowskiWojciech KucewiczWojciech KucewiczI. LongstaffF. Martinez VidalC. BarschelMark Richard James WilliamsG. WormserC. GasparA. RogozhnikovJing WangC. M. Costa SobralA. MazurovS. OgilvyHeather Mckenzie WarkA. BitadzeAnita NandiStephen M. StahlXiao-rui LyuA. DovbnyaJ. J. WalshD. Martins TostesO. De Aguiar FranciscoFrancesca DordeiAndrea MoginiT. BirdAlexander LeflatAlexander LeflatTjeerd KetelA. Fernandez PrietoBenedetto Gianluca SiddiTomasz FiutowskiP. CollinsSlavomira StefkovaMorgan MartinMichal KrepsJulien CoganB. JostN. NeufeldJ. Arnau RomeuS. De CapuaS. T. HarnewJ. M. Otalora GoicocheaMikhail ZavertyaevG. MancinelliDaniel Patrick O'hanlonMarco ClemencicS. CunliffeE. FurfaroStephane T'jampensIa. BezshyikoNikolay NikitinSimon NieswandKonrad KlimaszewskiV. ShevchenkoMarco SantimariaM. HessAntonino SergiT. BoettcherEmanuele MichielinNikolay BondarNikolay BondarAndrea ValassiSerhii KoliievS. KandybeiF. PalomboJ. Garra TicoT. KirnR. MatevValery ZhukovF. KruseM. TeklishynMartino BorsatoD. SavrinaF. F. WilsonG. MancaG. D. PatelE. TournefierStanislav PoslavskiiG. PunziAna TrisovicT. HeadS. SimoneR. CurrieS. Hansmann-menzemerAlessio SartiMohamad KozeihaC. ProuveJ. P. LeesC. Remon AlepuzPh. GhezA. SciubbaIgor BabuschkinChristian FärberC. PotteratR. Graciani DiazD. WebsdaleR. McnultyChristoph LangenbruchP. KrokovnyA. GomesFederico BettiL. A. Granado CardosoTobias TekampeDavid GerickP. E. L. ClarkeB. CouturierF. MeierL. BeaucourtP. D'argentEluned SmithO. SchneiderR. A. FiniA. SattaM. Vieites DiazA. SchopperCameron Thomas DeanA. JaegerXavier Vilasis-cardonaXavier Vilasis-cardonaM. Cruz TorresB. R. Gruberg CazonNeville HarnewJ. MarksS. TolkEduardo RodriguesR. CenciJ. A. De VriesRudolf OldemanR. SchwemmerR. MountainR. Vazquez GomezMarcel MerkKurt RinnertG. D. LaffertyM. StraticiucG. A. CowanL. PescatoreLucio AnderliniSophie RichardsAlessio BorgheresiAlessio BorgheresiK. De BruynJinlin FuS. SchaelAlison TullyGianluigi CasseLiupan AnO. SteinkampT. BrittonS. HallMark WilkinsonRoland WaldiR. NandakumarX. HanCh. CauetAndreas WeidenA. TsaregorodtsevXia-ji LiuL. GarridoK. WyllieC. BaessoAravindhan VenkateswaranCarmelo D'ambrosioJean François MarchandOleg StenyakinC. FitzpatrickL. ZhangU. EitschbergerLaura GavardiA. ZhokhovA. BadalovYanxi ZhangSebastian NeubertKarol HennessyO. MaevLennaert BelG. AlkhazovSebastian BachmannG. AuriemmaA. ContuS. VecchiT. LesiakV. SyropoulosOlivier LeroyM. Van VeghelTimofei MaltsevJ. SerranoK. MuellerB. PietrzykC. HadjivasiliouAnna LupatoVincenzo BattistaH. HopchevW. KansoM. MeissnerL. Del BuonoT. SkwarnickiZ. XingYu. GuzMikhail HushchynA. PopovAlexey A. PetrovMarina ArtusoPaul SeyfertRoger FortyA. Romero VidalBalazs VonekiP. MorawskiW. BoniventoC. Vázquez SierraXuhao YuanXuhao YuanV. ObraztsovR. Silva CoutinhoP. De SimoneAlessio PiucciYasmine AmhisE. SantovettiGabriele SimiFeng JiangGabriela Johanna PomeryS. MonteilY. H. ZhengSimone StrackaC. J. G. OnderwaterM. Lucio MartinezStephan EisenhardtPavol StefkoM. EbertMaxime VernetAxel Kevin KuonenA. Di CantoMax NeunerMurdo TraillV. GibsonRoberto CalabreseP. DuranteS. FarryAbhijit MathadB. SpaanK. Carvalho AkibaXiaofeng ZhuDavide FazziniDavide FazziniM. Calvo GomezM. Calvo GomezJ. ClosierA. MassafferriSilvia BorghiG. CortiM. KaracsonM. MorandinS. RoiserMarkward BritschAntony MorrisG. CollazuolL. CarsonE. JansM. J. MorelloNathan JurikM. H. SchuneU. UwerManuel SchillerT. RufS. EsenA. PapanestisDmitry GolubkovD. GalliEleonora LuppiP. Alvarez CartelleM. Pepe AltarelliDean Charles ForshawJ. A. Hernando MorataX. Cid VidalF. MuheimT. NikodemF. StagniGiulio DujanyNicoletta BelloliNicoletta BelloliRenato QuaglianiRenato QuaglianiA. PistoneRoel AaijE. Lemos CidA. GrecuL. SunAndrey UstyuzhaninSandra AmatoA. BondarM. VeltriG. HaefeliIvan PolyakovF. MaciucJ. H. LopesMarco GersabeckS. AmerioW. WislickiC. BozziSvende BraunL. De PaulaBaasansuren BatsukhDaniel Charles CraikCristina LazzeroniArno HeisterMichael KolpinC. SatrianoG. LanfranchiM.-n. MinardA. D. NguyenJ. WishahiJ. J. BackJ. MaratasK. BelousEugenia PriceJolanta BrodzickaC. GöbelBernardo AdevaAndrey TayduganovMalgorzata PikiesA. VorobyevJan BuytaertI. V. GorelovJ. E. AndrewsC. VossPatrick KoppenburgE. ThomasFlorian LemaitreS. BluskJ. García PardiñasR. LindnerGeorge CoombsHal EvansVincenzo VagnoniGiovanni CarboniLorenzo CassinaLorenzo CassinaM. PatelAlessandro CamboniM. Plo CasasusLaurent DufourM. RamaF. FontanelliC. KhurewathanakulC. Santamarina RiosDavid LohAgnieszka DziurdaGiulio GazzoniFederica LionettoK. TrabelsiN. K. WatsonR. J. BarlowSrikanth SridharanV. BocciK. KreplinAlessandra PastoreM. CorvoBrice MaurinF. BossuP. SpradlinStefano ZucchelliSimon AkarMarianna FontanaLars EklundH. L. SnoekY. N. GaoV. MuellerC. HaenE. GersabeckMarta CalviMarta CalviKevin DungsR. Le GacSandro CadedduV. Franco LimaChung Nguyen-mauChung Nguyen-mauM. MussiniM. SchluppG. MartellottiM. S. RangelD. TonelliAndrew CrocombeA. ShiresS. WrightD. MelnychukZ. MatheVeronika ChobanovaYong LiJ. R. SmithValery PugatchMatthew James TilleyJessica PrisciandaroRf FayU. EgedeH. LuoNathanael FarleyPatrick RobbePatrick RobbeF. J. P. SolerS. AliD. Martinez SantosS. C. HainesA. HicheurEmma BuchananL. KravchukKonstantinos PetridisJohn William RonayneD. VieiraB. HamiltonHang YinB. SchmidtA. UklejaAntonio PellegrinoZiad AjaltouniStefanie ReichertJeremy DalsenoP. GriffithJ. A. Rodriguez LopezM. De SerioS. StoicaWojciech KrzemienVladimir RomanovskiyA. ZhelezovI. RaniukD. H. Campora PerezA. LusianiS. Topp-joergensenM. FioreIvan BelyaevA. ArtamonovE. CognerasSean BensonU. StraumannG. CavalleroElena GraveriniOlivier DeschampsFlavio ArchilliT. GysP. MarinoG. VenezianoMark WhiteheadC. Marin BenitoDmitry PopovDmitry PopovA. NovoselovR. NietA. VollhardtMoritz DemmerKristian Alexander ZarebskiM. DeckenhoffS. KlaverAlex BirnkrautMichael AlexanderD. LucchesiD. E. HutchcroftJ. J. Saborido SilvaS. A. WottonD. LacarrereA. MordàM. MccannLucia GrilloLucia GrilloLucia GrilloC. MatteuzziV. Salustino GuimaraesM. BoubdirElnur SadykhovM. WitekE. PolycarpoTatsuya NakadaJ. BentonA. PritchardG. BencivenniS. StevensonMargarete SchellenbergS.-f. CheungA. SemennikovAndrea BizzetiMariana RihlS. FilippovKlaus FohlE. BowenMassimiliano FioriniAlessandro CardiniJ. M. De MirandaN. SkidmoreDominik Stefan MitzelPreema Rennee PaisV. VorobyevV. VorobyevClaudio GottiClaudio GottiDominik MüllerA. Gallas TorreiraM. NeedhamA. McnabRoland BernetE. Picatoste OlloquiAlena KosmyntsevaJ. BeddowZishuo YangA. BayDenis DerkachF. Ferreira RodriguesB. X. LiuG. PassalevaChristopher BurrL. M. Garcia MartinP. Rodriguez PerezP. Rodriguez PerezMirco AndreottiS. TourneurIwan Thomas SmithO. YushchenkoM. Ferro-luzziB. DeyS. StoneMalcolm JohnM. GandelmanM. TreschE. GushchinC. LinnA. OttoV. EgorychevSimon BakerM. Grabalosa GándaraFederico RediM. PalutanM. O. BettlerV. V. GligorovB. ViaudKonstantin GizdovKenneth WraightPh. CharpentierM. Ramos PernasN. SagidovaV. Fernandez AlborB. T. MeadowsAnastasiia KozachukDiego Alejandro MilanesP. PerretSergey BarsukC. JoramJ. Van LeerdamG. RavenA. A. AlvesAlexander MalininN. HussainVioletta CogoniVioletta CogoniP. NaikD. DecampA. GolutvinA. GolutvinA. DzyubaE. GraugesF. MachefertWilliam BarterC. HombachM. D. SokoloffKonstantin SchubertI. KomarovFrançois FleuretFrançois FleuretNicola SerraR. DzhelyadinA. LaiAndrea MauriA. PearceA. PearceWenbin QianA. B. RodriguesB. LeveringtonM. ChrzaszczM. ChrzaszczAngelo CarboneL. GiubegaL. Castillo GarciaM. SchmellingW. SutcliffeU. MarconiA. C. Dos ReisJaap VelthuisFrancis TorielloJ. AlbrechtDaniel Martin SaundersI. R. KenyonK. KurekM. PappagalloA. PetroliniD. PinciM. VesterinenMarco PetruzzoMatthew KenzieMarian StahlC. ParkesSilvia GambettaS. GianìM. P. WilliamsS. MaldeLucian CojocariuMark SmithA. BertolinF. TeubertJ. LefrançoisN. NeriStefano PerazziniPhilip John GarsedW. BaldiniV. Rives MolinaMaxime SchubigerB. PopoviciN. DéléageLorenzo CapriottiWilliam ParkerIgnacio BediagaJ. HarrisonF. PolciZhirui XuF. Da Cunha MarinhoTimothy EvansA. CookJ. MuellerA. JawaheryPaolo GandiniSimon StemmleD. FergusonG. ValentiT. E. LathamS. PlayferFrank FerrariM. SirendiJames Mwangi KariukiP. TsopelasC. PatrignaniV. TisserandOlivier Göran GirardThomas N. WilliamsD. LambertS. GalloriniFrancesco DettoriJ. BlouwJ. BlouwMateusz BaszczykA. FalabellaBiagio SaittaMatthew KelseyTatiana LikhomanenkoTatiana LikhomanenkoMarcin KucharczykGuy WilkinsonGuy WilkinsonLuciano PappalardoMaximilien ChefdevilleC. WallaceKevin MaguireD. R. JohnsonJ. D. PriceB. StoraciJ. M. YuA. OyangurenC. R. JonesAlexandra Paige RollingsE. Ben-haimM. ShapkinBasem KhanjiBasem KhanjiBasem KhanjiY. XieThomas BlakeH. SchindlerMarek IdzikP. Ruiz VallsThomas HadavizadehSimone BifaniMatthew Scott RudolphN. TuningM. De CianY. ShcheglovViolaine BelleeM. Van BeuzekomScott ElyO. GrünbergM. RotondoC. Sanchez MayordomoT. KvaratskheliyaH. V. CliffFederico AlessioJ. PanmanCh. ElsasserA. PalanoTomasz SzumlakPatrick OwenE. Van HerwijnenO. LuptonM. T. TranR. EkelhofI. A. MonroyT. J. GershonElie AslanidesJ. HeG. CiezarekR. JacobssonS. EasoMiroslaw FirlejThibaud HumairP. CampanaElena Dall'occoPaolo CarnitiPaolo CarnitiAlexander BerezhnoyAndrea MerliR. WallaceR. F. KoopmanB. Souza De PaulaClaudia VaccaSamuel CoquereauJakub MoronJ. Molina RodriguezS. KarodiaSai-juan ChenJ. Van TilburgVictor RenaudinGeorgios ChatzikonstantinidisLuca TomassettiS. RicciardiChristoph FreiPhilip IltenRoberta CardinaleR. B. ApplebyMatthieu KeckeWouter HulsbergenB. Sanmartin SedesTuomas PoikelaBarbara SciasciaS. EidelmanMick MulderP. HenrardEgor KhairullinV. VolkovF. BlancR. LefèvreG. GrazianiP. N. Y. DavidDavid GasconP. Vazquez RegueiroMarco CattaneoGuido AndreassiAgnieszka Oblakowska-muchaM. TobinKrzysztof SwientekFranco BedeschiJean WichtTimon SchmelzerI. Nasteva

subject

PhysicsParticle physicsLuminosity (scattering theory)010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyDisjoint sets01 natural sciencesNuclear physicsAmplitude0103 physical sciencesCP violationHigh Energy Physics::ExperimentCharm (quantum number)010306 general physicsMixing (physics)Eigenvalues and eigenvectors

description

Measurements of charm mixing and CP violation parameters from the decay-time-dependent ratio of D0→K+π− to D0→K−π+ decay rates and the charge-conjugate ratio are reported. The analysis uses B¯¯¯¯→D∗+μ−X, and charge-conjugate decays, where D∗+→D0π+, and D0→K∓π±. The pp collision data are recorded by the LHCb experiment at center-of-mass energies s√ = 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb−1. The data are analyzed under three hypotheses: (i) mixing assuming CP symmetry, (ii) mixing assuming no direct CP violation in the Cabibbo-favored or doubly Cabibbo-suppressed decay amplitudes, and (iii) mixing allowing either direct CP violation and/or CP violation in the superpositions of flavor eigenstates defining the mass eigenstates. The data are also combined with those from a previous LHCb study of D0→Kπ decays from a disjoint set of D∗+ candidates produced directly in pp collisions. In all cases, the data are consistent with the hypothesis of CP symmetry.

https://doi.org/10.1103/physrevd.95.052004