학술논문

Measurement of CP asymmetry in D0→K−K+ decays
Document Type
article
Author
R. AaijB. AdevaM. AdinolfiZ. AjaltouniS. AkarJ. AlbrechtF. AlessioM. AlexanderS. AliG. AlkhazovP. Alvarez CartelleA.A. Alves, JrS. AmatoS. AmerioY. AmhisL. AnL. AnderliniG. AndreassiM. AndreottiJ.E. AndrewsR.B. ApplebyF. ArchilliP. d'ArgentJ. Arnau RomeuA. ArtamonovM. ArtusoE. AslanidesG. AuriemmaM. BaalouchI. BabuschkinS. BachmannJ.J. BackA. BadalovC. BaessoS. BakerW. BaldiniR.J. BarlowC. BarschelS. BarsukW. BarterM. BaszczykV. BatozskayaB. BatsukhV. BattistaA. BayL. BeaucourtJ. BeddowF. BedeschiI. BediagaL.J. BelV. BelleeN. BelloliK. BelousI. BelyaevE. Ben-HaimG. BencivenniS. BensonJ. BentonA. BerezhnoyR. BernetA. BertolinF. BettiM.-O. BettlerM. van BeuzekomIa. BezshyikoS. BifaniP. BilloirT. BirdA. BirnkrautA. BitadzeA. BizzetiT. BlakeF. BlancJ. BlouwS. BluskV. BocciT. BoettcherA. BondarN. BondarW. BoniventoA. BorgheresiS. BorghiM. BorisyakM. BorsatoF. BossuM. BoubdirT.J.V. BowcockE. BowenC. BozziS. BraunM. BritschT. BrittonJ. BrodzickaE. BuchananC. BurrA. BurscheJ. BuytaertS. CadedduR. CalabreseM. CalviM. Calvo GomezA. CamboniP. CampanaD. Campora PerezD.H. Campora PerezL. CapriottiA. CarboneG. CarboniR. CardinaleA. CardiniP. CarnitiL. CarsonK. Carvalho AkibaG. CasseL. CassinaL. Castillo GarciaM. CattaneoCh. CauetG. CavalleroR. CenciM. CharlesPh. CharpentierG. ChatzikonstantinidisM. ChefdevilleS. ChenS.-F. CheungV. ChobanovaM. ChrzaszczX. Cid VidalG. CiezarekP.E.L. ClarkeM. ClemencicH.V. CliffJ. ClosierV. CocoJ. CoganE. CognerasV. CogoniL. CojocariuG. CollazuolP. CollinsA. Comerma-MontellsA. ContuA. CookS. CoquereauG. CortiM. CorvoC.M. Costa SobralB. CouturierG.A. CowanD.C. CraikA. CrocombeM. Cruz TorresS. CunliffeR. CurrieC. D'AmbrosioF. Da Cunha MarinhoE. Dall'OccoJ. DalsenoP.N.Y. DavidA. DavisO. De Aguiar FranciscoK. De BruynS. De CapuaM. De CianJ.M. De MirandaL. De PaulaM. De SerioP. De SimoneC.-T. DeanD. DecampM. DeckenhoffL. Del BuonoM. DemmerD. DerkachO. DeschampsF. DettoriB. DeyA. Di CantoH. DijkstraF. DordeiM. DorigoA. Dosil SuárezA. DovbnyaK. DreimanisL. DufourG. DujanyK. DungsP. DuranteR. DzhelyadinA. DziurdaA. DzyubaN. DéléageS. EasoM. EbertU. EgedeV. EgorychevS. EidelmanS. EisenhardtU. EitschbergerR. EkelhofL. EklundCh. ElsasserS. ElyS. EsenH.M. EvansT. EvansA. FalabellaN. FarleyS. FarryR. FayD. FazziniD. FergusonV. Fernandez AlborA. Fernandez PrietoF. FerrariF. Ferreira RodriguesM. Ferro-LuzziS. FilippovR.A. FiniM. FioreM. FioriniM. FirlejC. FitzpatrickT. FiutowskiF. FleuretK. FohlM. FontanaF. FontanelliD.C. ForshawR. FortyV. Franco LimaM. FrankC. FreiJ. FuE. FurfaroC. FärberA. Gallas TorreiraD. GalliS. GalloriniS. GambettaM. GandelmanP. GandiniY. GaoL.M. Garcia MartinJ. García PardiñasJ. Garra TicoL. GarridoP.J. GarsedD. GasconC. GasparL. GavardiG. GazzoniD. GerickE. GersabeckM. GersabeckT. GershonPh. GhezS. GianìV. GibsonO.G. GirardL. GiubegaK. GizdovV.V. GligorovD. GolubkovA. GolutvinA. GomesI.V. GorelovC. GottiM. Grabalosa GándaraR. Graciani DiazL.A. Granado CardosoE. GraugésE. GraveriniG. GrazianiA. GrecuP. GriffithL. GrilloB.R. Gruberg CazonO. GrünbergE. GushchinYu. GuzT. GysC. GöbelT. HadavizadehC. HadjivasiliouG. HaefeliC. HaenS.C. HainesS. HallB. HamiltonX. HanS. Hansmann-MenzemerN. HarnewS.T. HarnewJ. HarrisonM. HatchJ. HeT. HeadA. HeisterK. HennessyP. HenrardL. HenryJ.A. Hernando MorataE. van HerwijnenM. HeßA. HicheurD. HillC. HombachH. HopchevW. HulsbergenT. HumairM. HushchynN. HussainD. HutchcroftM. IdzikP. IltenR. JacobssonA. JaegerJ. JalochaE. JansA. JawaheryF. JiangM. JohnD. JohnsonC.R. JonesC. JoramB. JostN. JurikS. KandybeiW. KansoM. KaracsonJ.M. KariukiS. KarodiaM. KeckeM. KelseyI.R. KenyonM. KenzieT. KetelE. KhairullinB. KhanjiC. KhurewathanakulT. KirnS. KlaverK. KlimaszewskiS. KoliievM. KolpinI. KomarovR.F. KoopmanP. KoppenburgA. KozachukM. KozeihaL. KravchukK. KreplinM. KrepsP. KrokovnyF. KruseW. KrzemienW. KucewiczM. KucharczykV. KudryavtsevA.K. KuonenK. KurekT. KvaratskheliyaD. LacarrereG. LaffertyA. LaiD. LambertG. LanfranchiC. LangenbruchT. LathamC. LazzeroniR. Le GacJ. van LeerdamJ.-P. LeesA. LeflatJ. LefrançoisR. LefèvreF. LemaitreE. Lemos CidO. LeroyT. LesiakB. LeveringtonY. LiT. LikhomanenkoR. LindnerC. LinnF. LionettoB. LiuX. LiuD. LohI. LongstaffJ.H. LopesD. LucchesiM. Lucio MartinezH. LuoA. LupatoE. LuppiO. LuptonA. LusianiX. LyuF. MachefertF. MaciucO. MaevK. MaguireS. MaldeA. MalininT. MaltsevG. MancaG. MancinelliP. ManningJ. MaratasJ.F. MarchandU. MarconiC. Marin BenitoP. MarinoJ. MarksG. MartellottiM. MartinM. MartinelliD. Martinez SantosF. Martinez VidalD. Martins TostesL.M. MassacrierA. MassafferriR. MatevA. MathadZ. MatheC. MatteuzziA. MauriB. MaurinA. MazurovM. McCannJ. McCarthyA. McNabR. McNultyB. MeadowsF. MeierM. MeissnerD. MelnychukM. MerkA. MerliE. MichielinD.A. MilanesM.-N. MinardD.S. MitzelA. MoginiJ. Molina RodriguezI.A. MonroyS. MonteilM. MorandinP. MorawskiA. MordàM.J. MorelloJ. MoronA.B. MorrisR. MountainF. MuheimM. MulderM. MussiniD. MüllerJ. MüllerK. MüllerV. MüllerP. NaikT. NakadaR. NandakumarA. NandiI. NastevaM. NeedhamN. NeriS. NeubertN. NeufeldM. NeunerA.D. NguyenC. Nguyen-MauS. NieswandR. NietN. NikitinT. NikodemA. NovoselovD.P. O'HanlonA. Oblakowska-MuchaV. ObraztsovS. OgilvyR. OldemanC.J.G. OnderwaterJ.M. Otalora GoicocheaA. OttoP. OwenA. OyangurenP.R. PaisA. PalanoF. PalomboM. PalutanJ. PanmanA. PapanestisM. PappagalloL.L. PappalardoW. ParkerC. ParkesG. PassalevaA. PastoreG.D. PatelM. PatelC. PatrignaniA. PearceA. PellegrinoG. PensoM. Pepe AltarelliS. PerazziniP. PerretL. PescatoreK. PetridisA. PetroliniA. PetrovM. PetruzzoE. Picatoste OlloquiB. PietrzykM. PikiesD. PinciA. PistoneA. PiucciS. PlayferM. Plo CasasusT. PoikelaF. PolciA. PoluektovI. PolyakovE. PolycarpoG.J. PomeryA. PopovD. PopovB. PopoviciS. PoslavskiiC. PotteratE. PriceJ.D. PriceJ. PrisciandaroA. PritchardC. ProuveV. PugatchA. Puig NavarroG. PunziW. QianR. QuaglianiB. RachwalJ.H. RademackerM. RamaM. Ramos PernasM.S. RangelI. RaniukG. RavenF. RediS. ReichertA.C. dos ReisC. Remon AlepuzV. RenaudinS. RicciardiS. RichardsM. RihlK. RinnertV. Rives MolinaP. RobbeA.B. RodriguesE. RodriguesJ.A. Rodriguez LopezP. Rodriguez PerezA. RogozhnikovS. RoiserA. RollingsV. RomanovskiyA. Romero VidalJ.W. RonayneM. RotondoM.S. RudolphT. RufP. Ruiz VallsJ.J. Saborido SilvaE. SadykhovN. SagidovaB. SaittaV. Salustino GuimaraesC. Sanchez MayordomoB. Sanmartin SedesR. SantacesariaC. Santamarina RiosM. SantimariaE. SantovettiA. SartiC. SatrianoA. SattaD.M. SaundersD. SavrinaS. SchaelM. SchellenbergM. SchillerH. SchindlerM. SchluppM. SchmellingT. SchmelzerB. SchmidtO. SchneiderA. SchopperK. SchubertM. SchubigerM.-H. SchuneR. SchwemmerB. SciasciaA. SciubbaA. SemennikovA. SergiN. SerraJ. SerranoL. SestiniP. SeyfertM. ShapkinI. ShapovalY. ShcheglovT. ShearsL. ShekhtmanV. ShevchenkoA. ShiresB.G. SiddiR. Silva CoutinhoL. Silva de OliveiraG. SimiS. SimoneM. SirendiN. SkidmoreT. SkwarnickiE. SmithI.T. SmithJ. SmithM. SmithH. SnoekM.D. SokoloffF.J.P. SolerB. Souza De PaulaB. SpaanP. SpradlinS. SridharanF. StagniM. StahlS. StahlP. StefkoS. StefkovaO. SteinkampS. StemmleO. StenyakinS. StevensonS. StoicaS. StoneB. StoraciS. StrackaM. StraticiucU. StraumannL. SunW. SutcliffeK. SwientekV. SyropoulosM. SzczekowskiT. SzumlakS. T'JampensA. TayduganovT. TekampeG. TellariniF. TeubertE. ThomasJ. van TilburgM.J. TilleyV. TisserandM. TobinS. TolkL. TomassettiD. TonelliS. Topp-JoergensenF. TorielloE. TournefierS. TourneurK. TrabelsiM. TraillM.T. TranM. TreschA. TrisovicA. TsaregorodtsevP. TsopelasA. TullyN. TuningA. UklejaA. UstyuzhaninU. UwerC. VaccaV. VagnoniA. ValassiS. ValatG. ValentiA. VallierR. Vazquez GomezP. Vazquez RegueiroS. VecchiM. van VeghelJ.J. VelthuisM. VeltriG. VenezianoA. VenkateswaranM. VernetM. VesterinenB. ViaudD. VieiraM. Vieites DiazX. Vilasis-CardonaV. VolkovA. VollhardtB. VonekiA. VorobyevV. VorobyevC. VoßJ.A. de VriesC. Vázquez SierraR. WaldiC. WallaceR. WallaceJ. WalshJ. WangD.R. WardH.M. WarkN.K. WatsonD. WebsdaleA. WeidenM. WhiteheadJ. WichtG. WilkinsonM. WilkinsonM. WilliamsM.P. WilliamsT. WilliamsF.F. WilsonJ. WimberleyJ. WishahiW. WislickiM. WitekG. WormserS.A. WottonK. WraightS. WrightK. WyllieY. XieZ. XingZ. XuZ. YangH. YinJ. YuX. YuanO. YushchenkoK.A. ZarebskiM. ZavertyaevL. ZhangY. ZhangA. ZhelezovY. ZhengA. ZhokhovX. ZhuV. ZhukovS. Zucchelli
Source
Physics Letters B, Vol 767, Iss C, Pp 177-187 (2017)
Subject
Physics
QC1-999
Language
English
ISSN
0370-2693
1873-2445
Abstract
A measurement of the time-integrated CP asymmetry in the Cabibbo-suppressed decay D0→K−K+ is performed using pp collision data, corresponding to an integrated luminosity of 3 fb−1, collected with the LHCb detector at centre-of-mass energies of 7 and 8 TeV. The flavour of the charm meson at production is determined from the charge of the pion in D⁎+→D0π+ and D⁎−→D‾0π− decays. The time-integrated CP asymmetry ACP(K−K+) is obtained assuming negligible CP violation in charm mixing and in Cabibbo-favoured D0→K−π+, D+→K−π+π+ and D+→K‾0π+ decays used as calibration channels. It is found to be ACP(K−K+)=(0.14±0.15 (stat)±0.10 (syst))%. A combination of this result with previous LHCb measurements yields ACP(K−K+)=(0.04±0.12 (stat)±0.10 (syst))%,ACP(π−π+)=(0.07±0.14 (stat)±0.11 (syst))%. These are the most precise measurements from a single experiment. The result for ACP(K−K+) is the most precise determination of a time-integrated CP asymmetry in the charm sector to date, and neither measurement shows evidence of CP asymmetry.