6533b7d1fe1ef96bd125cbb4

RESEARCH PRODUCT

Branching fraction measurement ofB¯0→D(*)+π−andB−→D(*)0π−and isospin analysis ofB¯→D(*)πdecays

J. L. RitchieS. I. SerednyakovS. BettariniJ. ChauveauB. ChengV. E. BlinovO. HamonC. L. EdgarS. A. MajewskiJames R. WilsonH. K. HadavandD. W. G. S. LeithS. RicciardiW. N. CottinghamTetiana Hryn'ovaG. SchottP. PatteriM. SteinkeK. YiW. KozaneckiG. CalderiniJulie MalclesA. G. DenigL. Del BuonoM. PripsteinG. BenelliC. HeartyG. P. Dubois-felsmannE. O. OlaiyaM. A. SaeedR. C. FieldF. SalvatoreM. BondioliN. R. BarlowE. A. EckhartF. PalomboJunqiao WuVivek SharmaJ. W. BerryhillJames D. OlsenR. EckmannY. KaryotakisL. T. KerthD. CôtéK. T. FloodJ. F. HirschauerG. FinocchiaroV. LuthBruce SchummA. LazzaroDenis BernardT. B. MooreD. J. SummersB. G. FulsomD. SuV. PoireauM. S. AlamG. EigenK. A. UlmerCorrado AngeliniS. SaremiPierluigi PaolucciF. Safai TehraniP. C. BloomN. S. KnechtB. BhuyanR. SaccoA. HaukeJ. A. KadykChunhui ChenM. PiccoloM. T. AllenS. RodierM. BombenA. SnyderF. F. WilsonR. J. SobieA. PerazzoC. VoenaL. VitaleF. Martinez-vidalDominik MüllerN. DanielsonFrancesco FabozziFrancesco FabozziN. De GrootM. KrishnamurthyH. MarsiskeD. E. WagonerMauro MorandinQ. K. WongW. O. RuddickGabriele SimiPaul KyberdT. S. MattisonD. A. SandersF. MuheimK. K. GanH. L. SnoekA. J. HartL. BosisioMatteo RamaYuehong XieP. KimA. I. RobertsonV. P. DruzhininC. BozziK. HonscheidC. A. ChavezC. M. HawkesG. BatignaniW. GradlA. GazA. A. SalnikovW. RoethelJ. StrubeR. CapraH. SchröderS. LuitzC. L. DavisAndrei GritsanS. PrellC. H. ChengR. GametA. HöckerA. BuzzoR. GodangM. A. MazurM. MandelkernK. Yu TodyshevM. H. SchuneU. UwerM. CarpinelliM. T. NaisbitLydia RoosM. MorgantiMarcello RotondoY. P. LauH. U. FlaecherA. ZghicheR. J. WilsonJie ZhangJames H CochranR. J. BarlowColin JessopR. PrepostR. NogowskiB. L. HartfielA. J.s. SmithA. C. WrenRoberto CalabreseB. C. ShenT. BrandtR. StroiliS. E. MclachlinH. A. NealD. C. WilliamsNicolas BergerM. ChaoH. M. LackerM. HaireJ. C. WilliamsXiang LiB. LewandowskiPeter ElmerJ. OcarizJ. R. FrySai-juan ChenH. L. LynchM. PosoccoC. HastD. A. HopkinsS. M. SpanierD. J. LangeM. SpitznagelA. RydB. N. RatcliffA. SofferM. G. WilsonY. S. ZhuM. SimardD. A. RobertsL. PiemonteseKenji HamanoR. RahmatS. PruvotG. PireddaT. J. HarrisonJ. W. GaryL. M. CremaldiM. EbertS. K. SwainA. M. LutzDmytro KovalskyiB. DahmesM. BarrettD. M. StromA. DvoretskiiJ. C. ChenE. PrencipeC. D. BuchananN. D. QiR. SchwierzF. E. TaylorM. BruinsmaW. J. WisniewskiG. GrosdidierJ. Va'vraK. S. ChaisanguanthumE. P. SolodovJ. P. LeesM. MoriiD. Del ReR. De SangroS. L. WuE. CharlesFabio CossuttiF. BucciCh YècheG. Della RiccaL.m. ZhangA. SatpathyD. G. HitlinJ. E. SundermannJ. M. RoneyR. S. DubitzkyE. GabathulerW. R. InnesJohn AllisonD. BettoniG. W. BrandenburgS. E. MorganM. LegendreX. R. ChenS. PacettiYu I. SkovpenM. K. SullivanA. OlivasS. YeM. VerderiA. D'orazioR. Ter-antonyanM. ZitoC. C. YoungR. CowanY. B. PanM. WeaverF. C. PorterLuca ListaR. ContriJ. SchubertDavide PiccoloF. R. WapplerS. BrunetJ. M. LoseccoN. B. SinevJ. SchwieningLiliana TeodorescuS. PassaggioF. FangW. H. TokiF. SimonettoR. H. SchindlerK. PetersD. WalkerJ. M. ThompsonNicola NeriEnrico RobuttiW. T. MeyerI. NarskyM. T. GrahamR. KowalewskiL. Li GioiM. J.j. JohnR. AleksanS. B. ZainG. De NardoT. GlanzmanS. S. HertzbachF. WinklmeierY. GroysmanL. WildenX. C. LouJ. J. WalshSh. RahatlouR. Baldini-ferroliR. F. SchwittersI. M. NugentG. LynchV. E. OzcanW. MengesG. KukartsevW. BhimjiD. KirkbyU. MallikS. H. RobertsonT. SchalkF. B. ViaudM. A. MazzoniG. WormserPaul JacksonV. AzzoliniC. LuD. JuddV. LepeltierA. M. RahimiT. E. LathamD. B. MacfarlaneM. S. GillW. A. WenzelJ. StelzerG. VasseurA. M. EisnerC. CartaroD. MonorchioR. KroegerD. BoutignyK. A. GeorgeJ. G. SmithJ. C. DingfelderV. KloseC. GattoM. BenayounHerbert KochS. CurryC. J. SchillingS. AbachiL. DongN. L. BlountK. C. SchofieldR. K. YamamotoC. J. FlaccoRoberto CovarelliG. S. AbramsD. N. BrownA. PalanoV. B. GolubevK. WangM. LuA. T. WatsonH. W. ZhaoP. D. DaunceyR. N. CahnP. RoudeauR. G. JacobsenT. SchroederW. F. WangW. DunwoodieD. S. BestG. TherinS. SchenkW. Panduro VazquezB. SpaanA. StocchiB. T. MeadowsMirco AndreottiG. Hamel De MonchenaultG. RavenP. GrenierMaria Roberta MongeHung-wen LiuB. FranekMaurizio PieriniR. BulaN. A. RoeT. Cuhadar-donszelmannM. B. NikolichNicola CavalloNicola CavalloD. E. HutchcroftJ. M. BauerC. DallapiccolaCh De La VaissièreH. BriandS. AhmedA. D. BukinI. OfteL. M. MirT. R. McmahonT. PiatenkoI. EschrichClaudio CampagnariM. D. SokoloffC. M. BrownP. R. BurchatJ. J. HollarS. F. GanzhurA. MihalyiH. R. BandJ. A. MckennaC. TouramanisL. LanceriN. Van BakelD. GambaMaria A. NagelN. T. MeyerW. S. LockmanS. J. GowdyP. Del Amo SanchezJ. KrosebergG. CavotoG. D. LaffertyW. D. HulsbergenM. V. PurohitT. HeldK. E. FordQ. L. ZengE. GraugesMario GiorgiA. PetrellaE. PaoloniPhilip BechtleF. Di LodovicoVivek JainM. DavierR. BarateF. FortiBruce MelladoS. MorgantiH. JasperP. SpradlinM. PappagalloV. LombardoM. R. ConveryE. ChenB. StuguBernard AubertSw. BanerjeeD. J. PayneSridhara DasuM. WittgenX. R. ChenC. K. LaeMaurizio BiasiniM. T. RonanD. DujmicG. MarchioriA. J.r. WeinsteinH. KaganG. RizzoR. BartoldusM. SaleemE. FeltresiU. NauenbergM. M. MacriF. GalloS. J. SekulaA. JawaheryV. HalyoV. EygesZongfu YuF. BlancR. CenciOwen Rosser LongU. EgedeA. SeidenS. D. FoulkesG. CibinettoPrafulla Kumar BeheraL. GladneyV. ZieglerA. ZalloM. J. CharlesH. B. CrawleyR. FacciniJ. BiesiadaF. CoudercS. PlayferC. P. O'gradyG. B. MohantyG. SciollaT. M. HongM. FritschDouglas WrightF. FerrarottoA. J. LankfordP. J. ClarkJ. A. ErnstA. SamuelF. Le DiberderA. P. OnuchinAkram KhanM. A. BaakA. V. TelnovMarcella BonaR. MessnerG. RongA. OyangurenM. DattaA. ChenB. A. PetersenM. L. PerlJ. D. RichmanJ. T. BoydV. EschenburgSilvano TosiR. K. MommsenEleonora LuppiI. J. ForsterW. ParkP. TarasJustin AlbertMarkus CristinzianiJ. J. BackJoseph IzenE. I. RosenbergOlga IgonkinaJanice Button-shaferJ. A. NashM. Lo VetereCh ThiebauxJ. P. ColemanH. StaengleA. PetzoldF. AnulliG. R. BonneaudJ. DorfanA. RoodmanS. DittongoM. GasperoG. NesomA. KreiselAdrian John BevanT. PulliamWolfgang MaderFrancesco PolciT. J. OrimotoD. FortinW. T. FordJ. I. YiG. BlaylockRoland WaldiF. FerroniE. Di MarcoD. H. WrightTim AdyeJ. MarksC. PatrignaniA. CunhaShu LiV. TisserandR. FreyM. PelizaeusM. H. KelseyE. LatourP. S. JacksonC. A. HeuschD. A. BowermanPaul Fraser HarrisonG. A. CowanE. J. HillP. E. KutterT. AllmendingerPh LerusteR. D. KassD. J. SherwoodF. BelliniP. M. PatelN. ArnaudStephen Robert WagnerJ.h. PanettaX. ChaiK. R. SchubertC. VociA. GaidotD. D. AltenburgCrisostomo SciaccaD. AstonA. K. YarrituM. BattagliaS. EmeryA. J. EdwardsHyun-chul KimW. M. BuggK. SuzukiP. LundR. L. FlackK. MishraA. CalcaterraAlberto LusianiD. J. BardH. NicholsonA. PompiliMartino MargoniG. MancinelliJ. P. BurkeE. TorrenceP. DavidA. SantroniC. RoatA. VolkD. P. StokerR. ClausY. M. ChiaMatteo NegriniB. PanI. M. PeruzziH. P. PaarJ. E. BrauT. W. BeckYu. G. KolomenskyF. BianchiA. E. RubinD. HufnagelPu Wang

subject

PhysicsPhase differenceNuclear and High Energy PhysicsPi system010308 nuclear & particles physicsBranching fractionElectron–positron annihilationAnalytical chemistry01 natural sciencesParticle identificationNuclear physicsIsospin0103 physical sciencesPiB meson010306 general physics

description

Using 65 X 10(6) Y (4S) -> BB events collected with the BABAR detector at the PEP-II e(+) e(-) storage ring at the Stanford Linear Accelerator Center, we measure the color-favored branching fractions B(B-0 -> D+ pi(-)) = (2.55 +/- 0.05 +/- 0.16) X 10(-3), B(B-0 -> D*(+) pi(-)) = (2.79 +/- 0.08 +/- 0.17) X 10(-3), B(B- -> D-0 pi(-)) = (4.90 +/- 0.07 +/- 0.22) X 10(-3) and B(B- -> D*(0)pi(-)) = (5.52 +/- 0.17 +/- 0.42) X 10(-3), where the first error is statistical and the second is systematic. With these results and the current world average for the branching fraction for the color-suppressed decay B-0 -> D-(*()0)pi(0), the cosines of the strong phase difference delta between the I =1/2 and I = 3/2 isospin amplitudes are determined to be cos delta = 0.872(-0.007 - 0.029)(+0.008+0.031) for the B -> D pi process and cos delta = 0.924(-0.017 - 0.054)(+ 0.019 + 0.063) for the B -> D*pi process. Under the isospin symmetry, the results for cos delta suggest the presence of final-state interactions in the D pi system.

https://doi.org/10.1103/physrevd.75.031101