6533b871fe1ef96bd12d0d96

RESEARCH PRODUCT

Observation of the rare decayB+→K+π0π0and measurement of the quasi-two-body contributionsB+→K*(892)+π0,B+→f0(980)K+, andB+→χc0K+

Simon AkarMaurizio MartinelliG. OnoratoJ. M. RoneyColin JessopM. VerderiD. R. PeimerR. FacciniB. T. MeadowsG. RavenR. PrepostF. FerrarottoA. J. LankfordF. Le DiberderR. FreyM. D. SokoloffM. H. KelseyJ. D. RichmanJ. G. SmithE. M.t. PuccioU. MallikP. R. BurchatM. WeaverT. LueckGabriele SimiC. L. DavisR. Baldini-ferroliA. M. EisnerF. U. BernlochnerG. J. KingD. KirkbyG. VasseurJ. MarksK. T. FloodDmytro KovalskyiG. A. CowanT. S. MiyashitaR. GorodeiskyD. A. RobertsJ. P. LeesG. De NardoC. LuG. Hamel De MonchenaultH. A. NealD. MonorchioR. CenciM. CarpinelliC. HeartyD. J. SummersD. LindemannM. V. PurohitP. KimR. EckmannP. LewisA. ZalloF. Di LodovicoJ. AlbertR. M. WhiteM. Franco SevillaM. BondioliM. MuneratoHeiko LackerD. J. PayneA. RoodmanC. CartaroDenis BernardB. SpaanU. NauenbergE. FioravantiT. PulliamP. D. DaunceyT. HartmannPrafulla Kumar BeheraM. WittgenA. A. SalnikovRoland WaldiF. FerroniG. M. VitugA. R. BuzykaevD. E. HutchcroftC. DallapiccolaT. LeddigA. M. LutzDouglas WrightV. SantoroMaurizio BiasiniOwen Rosser LongV. PrasadA. M. GabareenM. TibbettsR. J. SobieL. VitaleF. Martinez-vidalDominik MüllerBruce SchummRoberto CalabreseL. LanceriChunhui ChenEleonora LuppiW. ParkD. DujmicMarcello RotondoM. SigamaniA. J. EdwardsPhilippe GrenierClaudio CampagnariF. FortiElisa GuidoJ. L. RitchieH. R. BandW. S. LockmanElisa ManoniM. FritschG. LynchP. J. ClarkA. SeidenM. L. KocianO. HamonJ. A. ErnstW. T. FordTim AdyeR. D. KassJ. OcarizB. C. WrayE. PrencipeL. M. CremaldiS. PlayferJ. ChauveauA. V. TelnovPaul Fraser HarrisonR. F. SchwittersV. B. GolubevB. LindquistP. RoudeauB. N. RatcliffJ. W. GaryAlessandro RossiD. SuL. Li GioiJ. Va’vraF. SimonettoR. H. SchindlerM. R. ConveryR. SchwierzD. B. MacfarlaneP. M. PatelL. SunH. W. WulsinAlberto CervelliD. BettoniM. PiccoloD. GambaMaria A. NagelX. NguyenMatteo RamaD. A. MilanesD. A. DollM. T. GrahamR. AndreassenF. LiuStephen Robert WagnerK. R. SchubertJ. R. FryA. M. RulandAdrian John BevanHyun-chul KimJ. M. LoseccoG. BatignaniC. H. ChengAndrei GritsanM. MandelkernN. GuttmanR. ContriR. KroegerM. NicolaciS. PrellJames H CochranV. PoireauS. PacettiR. SaccoH. L. SnoekE. GraugesG. RizzoN. B. SinevBogdan MalaescuB. StuguC. C. YoungE. Ben-haimW. T. MeyerMario GiorgiM. EbertI. M. PeruzziR. De SangroR. GodangR. GodangG. MarchioriR. CowanH. L. LynchS. L. WuX. C. LouJ. J. WalshH. H. F. ChoiA. P. WagnerY. B. PanR. KowalewskiMauro MorandinSridhara DasuA. N. YushkovA. LusianiI. GarziaD. H. WrightD. M. StromW. H. TokiA. J.s. SmithS. SittG. SciollaMartino MargoniA. Y. RakitinR. C. FieldS. M. SpanierCorrado AngeliniA. OyangurenD. N. BrownChristopher WestG. FinocchiaroV. LuthB. HamiltonW. F. WangW. J. WisniewskiS. NelsonD. G. HitlinM. S. DubrovinE. BehnC. PatrignaniShu LiV. TisserandStephen SekulaD. Lopes PegnaM. S. AlamB. EchenardH. AhmedM. L. PerlZ. J. GuoA. SnyderT. M. HongS. I. SerednyakovA. AdametzY. I. SkovpenK. Y. TodyshevI. OfteA. KhanD. S. BaileyV. P. DruzhininC. BozziG. D. LaffertyJoseph IzenF. F. WilsonC. TouramanisS. PassaggioSw. BanerjeeK. HonscheidC. A. ChavezR. J. BarlowR. J. BarlowA. J. MartinezE. TorrenceF. BianchiP. TarasE. P. SolodovC. L. LeeA. E. RubinM. PosoccoO. GrünbergI. M. NugentJ. Garra TicoC. BüngerM. GasperoS. BettariniJ. P. ColemanG. GrosdidierNicola NeriT. SchalkM. DavierG. P. Dubois-felsmannS. StrackaL. PiemonteseR. AyadR. AyadA. JawaheryE. GabathulerW. R. InnesW. GradlA. G. DenigV. LombardoJ. E. BrauG. CibinettoF. C. PorterGiulia CasarosaM. A. MazzoniG. WormserD. J. AsgeirssonT. S. MattisonH. SchröderS. LuitzC. HastD. J. LangeG. PireddaE. FeltresiA. P. OnuchinM. MoriiT. SchroederI. BinghamW. DunwoodieT. J. GershonK. E. AlwynYu. G. KolomenskyD. J. BardA. PalanoP. LundM. PappagalloA. CalcaterraH. AtmacanD. P. StokerMarco BombenP. SonnekK. J. KnoepfelA. HafnerMatteo NegriniJ. KrosebergG. CavotoG. JacksonN. GagliardiJ. DorfanPh LerusteN. ArnaudA. K. YarrituP. PatteriB. BhuyanB. G. FulsomM. K. SullivanZ. C. HuardE. I. RosenbergF. AnulliAlessandro GazS. H. RobertsonS. EmeryHerbert KochC. J. SchillingV. ZieglerAbner SofferCh YècheA. StocchiMaria Roberta MongeJ. A. MckennaE. PaoloniR. BartoldusJ. F. BenitezM. Lo VetereP. BiassoniE. O. OlaiyaM. SchramF. PalomboJames D. OlsenEnrico RobuttiP. OngmongkolkulL. T. KerthV. E. BlinovB. OberhofG. R. BonneaudP. C. BloomM. J. LewczukD. W. G. S. LeithE. A. KravchenkoG. CalderiniCrisostomo SciaccaD. AstonA. LazzaroM. J. KobelT. E. LathamN. TasneemAidan Randle-condeM. H. SchuneU. UwerR. StroiliM. BellisAndrea Rodriguez PerezJames R. WilsonH. BriandG. Eigen

subject

PhysicsNuclear and High Energy PhysicsMeson010308 nuclear & particles physicsBranching fractionElectron–positron annihilationHadronDalitz plot01 natural sciencesParticle decayCrystallographyTheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY0103 physical sciencesB mesonAtomic physics010306 general physicsDimensionless quantity

description

We report an analysis of charmless hadronic decays of charged B mesons to the final state K{sup +}{pi}{sup 0}{pi}{sup 0}, using a data sample of (470.9 {+-} 2.8) x 10{sup 6} B{bar B} events collected with the BABAR detector at the {Gamma}(4S) resonance. We observe an excess of signal events, with a significance above 10 standard deviations including systematic uncertainties, and measure the branching fraction and CP asymmetry to be {Beta}(B{sup +} {yields} K{sup +}{pi}{sup 0}{pi}{sup 0}) = (16.2 {+-} 1.2 {+-} 1.5) x 10{sup -6} and A{sub CP}(B{sup +} {yields} K{sup +}{pi}{sup 0}{pi}{sup 0}) = -0.06 {+-} 0.06 {+-} 0.04, where the uncertainties are statistical and systematic, respectively. Additionally, we study the contributions of the B{sup +} {yields} K{sup +}(892){sup +}{pi}{sup 0}, B{sup +} {yields} f{sub 0}(980)K{sup +}, and B{sup +} {yields} {chi}{sub c0}K{sup +} quasi-two-body decays. We report the world's best measurements of the branching fraction and CP asymmetry of the B{sup +} {yields} K{sup +}{pi}{sup 0}{pi}{sup 0} and B{sup +} {yields} K{sup +}(892){sup +}{pi}{sup 0} channels.

https://doi.org/10.1103/physrevd.84.092007