6533b7d4fe1ef96bd1263166
RESEARCH PRODUCT
Measurement of theB0→π−ℓ+νandB+→η(′)ℓ+νbranching fractions, theB0→π−ℓ+νandB+→ηℓ+νform-factor shapes, and determination of|Vub|
A. RoodmanA. PerezS. AhmedD. GambaMaria A. NagelO. HamonE. FioravantiT. PulliamM. SimardD. A. RobertsN. GuttmanRoland WaldiF. FerroniG. GrosdidierV. E. BlinovE. PrencipeS. B. ZainL. DongG. De NardoB. StuguJ. SerranoG. M. VitugA. AdametzC. LuV. B. GolubevB. LindquistD. E. HutchcroftC. DallapiccolaT. LeddigH. R. BandAbner SofferG. MarchioriJ. R. FryH. W. WulsinPaul Fraser HarrisonW. S. LockmanP. M. PatelD. W. G. S. LeithR. ContriP. C. BloomC. H. ChengStephen Robert WagnerJ. M. TuggleK. R. SchubertP. TarasE. P. SolodovCh YècheB. SpaanC. LindsayP. Del Amo SanchezL. LanceriM. NicolaciS. ParamesvaranM. R. ConveryA. LazzaroR. De SangroS. L. WuN. Lopez-marchG. RizzoM. BondioliM. MuneratoHeiko LackerP. KimR. M. WhiteM. Franco SevillaC. CartaroR. C. FieldX. R. ChenG. FinocchiaroM. S. AlamR. F. SchwittersD. B. MacfarlaneA. SnyderF. F. WilsonM. GasperoMaria Roberta MongeG. CalderiniB. C. WrayW. H. TokiM. VerderiC. A. HeuschL. A. CorwinD. A. MilanesK. Yu TodyshevM. H. SchuneT. M. KarbachChunhui ChenD. LindemannD. SuU. UwerJ. A. MckennaY. B. PanR. KowalewskiE. PaoloniJ. Firmino Da CostaU. MallikAlessandro RossiM. J. LewczukM. PiccoloJ. P. ColemanA. G. DenigJ. E. BrauM. T. AllenR. StroiliA. Y. RakitinT. S. MiyashitaB. N. RatcliffG. BatignaniF. SimonettoR. H. SchindlerR. EckmannBruce SchummElisa GuidoJ. L. RitchieE. SalvatiS. NelsonE. A. KravchenkoA. M. EisnerM. MandelkernMaurizio MartinelliK. T. FloodF. LiuR. SchwierzM. ZitoC. C. YoungW. T. MeyerB. EchenardD. BernardA. OyangurenDenis DerkachPhilippe GrenierI. M. NugentJ. Garra TicoA. C. WrenL. O. WinstromA. J. EdwardsB. PanW. F. WangX. NguyenR. BartoldusR. SaccoAidan Randle-condeC. L. LeeM. ZhaoAndrei GritsanH. L. SnoekA. PetzoldG. Hamel De MonchenaultF. U. BernlochnerG. J. KingJames R. WilsonC. TouramanisV. SordiniE. GraugesM. DavierI. M. PeruzziMario GiorgiM. EbertR. KroegerYu. G. KolomenskyA. P. WagnerMauro MorandinB. FranekF. RengaM. V. PurohitJ. SchwieningHyun-chul KimA. N. YushkovE. Ben-haimS. StrackaA. 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G. SmithE. M.t. PuccioD. DujmicElisa ManoniA. P. OnuchinM. D. SokoloffP. R. BurchatL. VitaleF. Martinez-vidalOwen Rosser LongS. LuitzI. BinghamDominik MüllerA. SeidenS. PlayferC. P. O'gradyA. V. TelnovE. TorrenceP. BiassoniJ. A. ErnstCorrado AngeliniJ. OcarizR. FacciniF. FerrarottoA. J. LankfordD. A. DollA. LusianiF. Le DiberderKenji HamanoE. O. OlaiyaR. RahmatA. PetrellaL. SunAlberto CervelliJ. M. ThompsonI. OfteStephen SekulaD. Lopes PegnaJ. W. GaryM. A. SaeedM. SchramF. PalomboAdrian John BevanJ. D. RichmanA. KhanD. S. BaileyV. P. DruzhininC. BozziT. M. HongJames D. OlsenJ. A. KolbK. E. AlwynH. JasperL. T. KerthM. WeaverK. HonscheidC. A. ChavezH. L. LynchR. Baldini-ferroliPh. LerusteD. J. BardOlga IgonkinaA. M. GabareenH. BriandR. J. BarlowW. T. FordTim AdyeR. D. KassH. MarsiskeM. PosoccoJ. M. LoseccoE. C. MartinM. FritschM. PappagalloH. A. NealD. MonorchioD. M. StromN. L. BlountP. D. DaunceyN. B. SinevT. HartmannL. WangG. LynchMirco AndreottiA. R. BuzykaevD. KirkbyG. VasseurJ. 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PatrignaniShu LiV. TisserandL. Li GioiJ. Va’vrasubject
Semileptonic decayPhysicsNuclear and High Energy Physics010308 nuclear & particles physicsCabibbo–Kobayashi–Maskawa matrixBranching fractionElectron–positron annihilationAnalytical chemistryForm factor (quantum field theory)01 natural sciencesNuclear physicsParticle decay0103 physical sciences010306 general physicsLeptonDimensionless quantitydescription
We report the results of a study of the exclusive charmless semileptonic decays, B^+ → η^((′))l^+ν and B^0 → π^-l^+ν, undertaken with approximately 464 × 10^6 BB pairs collected at the Υ(4S) resonance with the BABAR detector. The analysis uses events in which the signal B decays are reconstructed with a loose neutrino reconstruction technique. We obtain partial branching fractions for B^+ → ηl^+ν and B^0 → π^-l^+ν decays in three and 12 bins of q^2, respectively, from which we extract the f_+(q^2) form-factor shapes and the total branching fractions B(B^+ → ηl^+ν)=(0.36 ± 0.05_(stat) ± 0.04_(syst))× 10^(-4) and B(B^0 → π^-l^+ν)=(1.42 ± 0.05_(stat) ± 0.07_(syst)) × 10^(-4). We also measure B(B^+ → η^′l^+ν)=(0.24 ± 0.08_(stat) ± 0.03_(syst))× 10^(-4). We obtain values for the magnitude of the CKM matrix element |V_(ub)| using three different QCD calculations.
year | journal | country | edition | language |
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2011-03-24 | Physical Review D |