6533b870fe1ef96bd12cefdb

RESEARCH PRODUCT

Observation of the DecayB±→π±π0, Study ofB±→K±π0, and Search forB0→π0π0

D. J.j. MangeolBruce SchummA. LuL. BosisioAndrei GritsanA. N. YushkovK. GoetzenJ. L. HartonG. LynchE. TorrenceP. DavidJ. OcarizT. J. HarrisonJ. Va'vraJ.j. ReidyPierre-francois GiraudA. SantroniJ. M. LoseccoJ.e. SwainN. B. SinevDouglas WrightV. HalyoL. GladneyR. FacciniR. FacciniR. PrepostF. FerrarottoA. J. LankfordF. Le DiberderS. M. XellaC. CartaroR. R. KoflerMarcella BonaM. KrishnamurthyJ. H. Von Wimmersperg-toellerJ. D. RichmanR. NogowskiD. E. WagonerY. KaryotakisGabriele SimiC. L. DavisS. RicciardiR. GametAlexis PompiliTetiana Hryn'ovaM. PivkJ. BroseD. FortinPeter ElmerC. D. BuchananV. N. IvanchenkoC. HastM. HaireJ. C. WilliamsG. WagnerD.p. CoupalA. CalcaterraJ. Button-shaferY. G. KolomenskyG. A. CowanA. OlivasG. VaitsasP. KimA. RoodmanK. PetersW. M. BuggD. KovalskyiM. WeaverO. HamonB. DahmesA. W. BorglandS. BaileyH. MarsiskeA. HicheurHyun-chul KimA. HaukeR. S. DubitzkyAmir FarbinA. A. SalnikovT. PulliamRoland WaldiF. FerroniS. EmeryR. Baldini-ferroliD. KirkbyG. VasseurRoland BernetA. M. EichenbaumH. NicholsonM. E. LeviC. RoatD. P. StokerV. MiftakovL. Del BuonoHerbert KochClaudio CampagnariF. SandrelliAlberto LusianiRobert N. CahnFergus WilsonLijun ZhangRoger BarlowMartino MargoniL. WildenH. P. PaarD. A. BowermanJ. E. BrauD. SuMathieu LangerPhilip James ClarkM. IwasakiR. EckmannE. Grauges-pousM. PiccoloMarcello RotondoH. U. FlaecherA. ZghicheR. J. WilsonS. H. RobertsonS. PlayferC. P. O'gradyM. SerraAkram KhanP. PoropatM. A. BaakA. J.s. SmithA. M. EisnerA. M. LutzW. J. WisniewskiA. SohaF. BucciD. LavinL. M. CremaldiP. M. PatelF. FortiJ. StelzerG. BatignaniS. J. SekulaJ. TinslayJ. RoyS. WillocqRalph Müller-pfefferkornNicola CavalloD. Del ReSergio GrancagnoloG. Della RiccaPatrick RobbeStephen Robert WagnerJ.h. PanettaG. Hamel De MonchenaultD. ThiessenR. S. PanviniD. FalciaiR. G. JacobsenM. TurriK. R. SchubertM. MandelkernJ.m. GaillardG. R. BonneaudS. PassaggioS. YangFrancesco FabozziFrancesco FabozziR. CowanM. V. PurohitB. T. MeadowsValerio ReG. TriggianiAlessio SartiV. B. KoptchevI. NarskyP.f. ManfrediW. T. FordJ. DorfanY. B. PanD. G. HitlinP. RankinF. BrochardH. W. ShorthouseA. M. BoyarskiG. RavenTim AdyeS. S. HertzbachY. GroysmanA. C. YecheAjit MohapatraR. KowalewskiJ. I. YiM. D. SokoloffC. M. BrownM.l. AspinwallP. SandersF. X. YumicevaA. HöckerM. L. KocianG. P. TaylorP. R. BurchatS. AhmedD. GambaP. StrotherS. OttoH. W. ZhaoP. D. DaunceyE. J. HillA. B. BreonNicola NeriG. BlaylockF. BlancJ. W. LamsaG. J. GrenierG. De NardoMaddie Mc KayPh LerusteB. BrauT. SchalkC. LuD. JuddI. OfteD. D. AltenburgN. De GrootM. A. MazzoniM. CarpinelliLydia RoosC. H. ChengS. PetrakB. MayerM. MorgantiG. WormserS. J. LeeMatteo RamaG. KukartsevCorrado AngeliniE. ChenQ. H. GuoB. StuguC. GattoS. PrellP. A. HartF. SimonettoB. SpaanO. L. BuchmuellerR. H. SchindlerJames H CochranC. BozziB. LewandowskiMaria Roberta MongeA. SofferJ. R. FryP. D. JacksonR. K. YamamotoWahid BhimjiH. BriandA. D. BukinJ. A. MckennaA. RomosanA. BuzzoC. BoreanV. B. GolubevL. LanceriM. G. GreenW. C. Van HoekR. AleksanG. MarchioriR. De SangroS. L. WuN. ChevalierM. PosoccoM. SteinkeE. PaoloniU. SchwankeP.b. VidalW. DunwoodieP. J. OddoneJ. StarkM. DavierN. R. BarlowA. K. MckemeyW. H. TokiR. BartoldusB. FranekN. I. GeddesR. KroegerZongfu YuR. MessnerR. ContriE. I. RosenbergG. EigenMaurizio PieriniG. P. Dubois-felsmannG. RongF. Safai TehraniC. A. HeuschV. EschenburgD. BoutignyE. P. SolodovE. W. VarnesJohn AllisonA. T. WatsonP. TarasTeresa BarillariS. GeorgeE. MalyJ. A. NashS. DittongoJ. ZhangE. A. KravchenkoM. G. WilsonD. A. RobertsF.c. PastoreF. E. TaylorM. GasperoM. S. GillD. J. KnowlesDavide PiccoloH. HuC. K. LaeV. LepeltierG. GrosdidierCatherine Kirsty MackayI. M. PeruzziR. W. KadelC. VociG. BellodiN. KuznetsovaK. T. FloodG. RizzoN. K. WatsonG. TiozzoMarie Helene SchuneT. ColbergM. BenayounA. PalanoV. E. OzcanM. PelizaeusH. M. LackerS. F. GanzhurCrisostomo SciaccaD. AstonA. ZalloF. ColecchiaWolfgang WalkowiakU. EgedeH. L. LynchF. JacksonG. SciollaD. BernardF. BelliniP. C. BloomToyoko OrimotoF. BianchiR. FreyL. TantotM. H. KelseyD. D. BrownG. CavotoG. CavotoT. C. PetersenM. L. PerlT. GlanzmanG. VuagninR. F. SchwittersJ. T. BoydJoseph IzenPaul KyberdD. B. MacfarlaneP. F. HarrisonM. BondioliJ. R. JohnsonD. M. StromH. A. TanakaJustin AlbertG. W. MortonE. CharlesS. JayatillekeT. BrandtR. StroiliH. A. NealPu WangA. RydM. M. MacriA. JawaheryV.g. ShelkovYu I. SkovpenJohn BackD. S. BestR. J. SloaneT. R. McmahonA. P. OnuchinU. LangeneggerP. PatteriC. T. PotterMario GiorgiI. EschrichS. MorgantiSridhara DasuS. LuitzA. J.r. WeinsteinD. C. WilliamsC. HeartyM. ChaoStephane T'jampensD. J. SummersM. K. SullivanE. TreadwellAlessandra FortiW.a. WenzelA. PerazzoM. MilekC. VoenaJ. P. LeesL. VitaleF. Martinez-vidalF. Martinez-vidalDominik MüllerStéphane PlaszczynskiJ. BeringerS. BettariniGeorge LaffertyEmilio LeonardiT. B. MooreM. PripsteinE. O. OlaiyaJ.h. WeatherallF. PalomboVivek SharmaJames D. OlsenG. S. AbramsV. E. BlinovT. HuM. DickoppD. W. G. S. LeithW. N. CottinghamS. LaplaceG. CalderiniJ. SchwieningC. E. MarkerR. LiuX. C. LouJ. J. WalshJ. A. KadykW. KozaneckiS. ChristD. N. BrownMauro MorandinA. J. BevanF. MuheimJ. ChauveauA. KurupD. DongY. S. ZhuG. VasileiadisNicolas BergerS. M. SpanierLluisa-maria MirM. A. WinterM. VerderiT. HadigG. CrosettiEnrico RobuttiU. MallikA. V. TelnovJ. M. BauerS. McmahonC. DallapiccolaCh De La VaissièreH. R. BandR. E. SchmitzW. S. LockmanT. SchietingerM. R. ConveryG. SchottJ. L. RitchieI. KitayamaS. I. SerednyakovH. K. HadavandJ. W. BerryhillPierluigi PaolucciN. DanielsonF. GaleazziSven MenkeJohann Cohen-tanugiR. K. MommsenS. L. LevyR. C. FieldF. SalvatoreG. FinocchiaroV. LuthC. M. HawkesR. M. BiontaOwen Rosser LongA. SeidenM. DattaWouter VerkerkeA. J. LyonA. SnyderC. ThiebauxH. StaengleG. W. LondonK. PaickT. I. MeyerB. N. RatcliffN. D. QiR. SchwierzT. S. MattisonD. A. SandersA. DorigoJunjie WuC. C. YoungW. T. MeyerD. J. LangeG. PireddaA. DvoretskiiM. A. MazurJ. C. ChenM. MoriiD. H. WrightC. PatrignaniSh. RahatlouV. TisserandM. Lo-vetereJ. M. RoneyLuca ListaC. TouramanisJ. G. SmithC. P. JessopR. C. PennyJ. F. KralF. AnulliA. GaidotG. P. GopalF. Di LodovicoBernard AubertD. J. PayneU. NauenbergA. SamuelSilvano TosiV. BrigljevićC. LeclercL. T. KerthW. RoethelMichael T RonanH. SchmueckerL. PiemonteseE. GabathulerW. R. InnesF. C. PorterT. A. GabrielM. ZitoS. J. GowdyV. LillardT. DeppermannR. BarateSw. BanerjeeNatalie A. RoeH. B. CrawleyA. W. WeidemannG. Mancinelli

subject

PhysicsMeson010308 nuclear & particles physicsBranching fractionElectron–positron annihilationHadronAnalytical chemistryGeneral Physics and Astronomy01 natural sciencesParticle decayTheoretical physicsPion0103 physical sciencesPiB meson010306 general physics

description

We present results for the branching fractions and charge asymmetries in B+/--->h(+/-)pi(0) (where h(+/-)=pi(+/-),K+/-) and a search for the decay B0-->pi(0)pi(0) using a sample of approximately 88 x 10(6) BBmacr; pairs collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We measure B(B+/--->pi(+/-)pi(0))=(5.5(+1.0)(-0.9)+/-0.6)x10(-6), where the first error is statistical and the second is systematic. The B+/--->pi(+/-)pi(0) signal has a significance of 7.7sigma including systematic uncertainties. We simultaneously measure the K+/-pi(0) branching fraction to be B(B+/--->K+/-pi(0))=(12.8(+1.2)(-1.1)+/-1.0)x10(-6). The charge asymmetries are Api(+/-)(pi(0))=-0.03(+0.18)(-0.17)+/-0.02 and AK+/-(pi(0))=-0.09+/-0.09+/-0.01. We place a 90% confidence-level upper limit on the branching fraction B(B0-->pi(0)pi(0)) of 3.6 x 10(-6).

https://doi.org/10.1103/physrevlett.91.021801