6533b7d3fe1ef96bd125fede
RESEARCH PRODUCT
Evidence for an Excess ofB¯→D(*)τ−ν¯τDecays
M. VerderiT. E. LathamA. M. EisnerU. MallikR. GorodeiskyZ. C. HuardE. GraugesMario GiorgiM. SimardD. A. RobertsY. B. PanDouglas WrightA. M. LutzG. Hamel De MonchenaultD. LindemannR. KowalewskiSridhara DasuT. S. MiyashitaH. SchröderS. LuitzV. B. GolubevA. Y. RakitinR. BartoldusF. AnulliE. M. T. PuccioF. Di LodovicoAlessandro GazElisa GuidoJ. L. RitchieB. LindquistM. V. PurohitD. J. BardR. Y. SoS. NelsonR. AndreassenJ. AlbertRoger BarlowRoger BarlowMartino MargoniO. HamonW. J. WisniewskiD. J. PayneU. NauenbergP. PatteriM. WittgenH. W. WulsinS. SittR. F. SchwittersV. E. BlinovDenis DerkachD. B. MacfarlaneJ. F. BenitezBruce SchummColin JessopR. PrepostB. BhuyanH. A. NealD. MonorchioA. P. WagnerMauro MorandinB. G. FulsomP. SonnekH. AhmedG. JacksonF. LiuM. Lo VetereE. PrencipeS. PassaggioT. S. MattisonG. J. KingB. C. WrayP. D. DaunceyD. R. PeimerR. FreyR. SaccoG. RizzoP. LundA. CalcaterraH. AtmacanB. OberhofM. J. LewczukT. HartmannP. KimR. M. WhiteG. R. BonneaudE. TorrenceS. M. SpanierE. BehnE. A. KravchenkoA. R. BuzykaevC. HastD. J. LangeG. PireddaJ. DorfanR. Baldini-ferroliD. W. G. S. LeithM. H. KelseyD. SuM. MoriiA. J.s. SmithX. C. LouJ. J. WalshM. Franco SevillaMarcello RotondoM. SigamaniC. CartaroL. M. CremaldiMaurizio MartinelliPh LerusteN. ArnaudG. M. VitugSw. BanerjeeD. E. HutchcroftC. DallapiccolaT. LeddigM. K. SullivanS. H. RobertsonCrisostomo SciaccaD. AstonJ. R. FryD. N. BrownJ. M. RoneyD. KirkbyG. VasseurK. T. FloodSimon AkarM. PiccoloH. R. BandS. ZambitoT. J. GershonG. CalderiniS. EmeryR. CenciW. S. LockmanAbner SofferDmytro KovalskyiC. H. ChengAlessandro RossiA. M. RulandG. OnoratoP. LewisA. ZalloA. A. SalnikovX. NguyenAndrei GritsanJ. P. LeesG. BatignaniCh YècheS. BettariniGeorge LaffertyJ. G. SmithB. T. MeadowsR. De SangroS. L. WuG. RavenM. R. ConveryM. CarpinelliK. GriessingerMaurizio BiasiniA. StocchiM. D. SokoloffM. MandelkernE. Ben-haimA. OyangurenP. R. BurchatW. H. TokiV. PrasadRoberto CalabreseJ. OcarizG. P. Dubois-felsmannMaria Roberta MongeS. PacettiD. G. HitlinW. F. WangEleonora LuppiV. ZieglerN. TasneemC. BüngerJ. A. MckennaR. CowanOwen Rosser LongA. N. YushkovE. PaoloniW. ParkM. BondioliA. M. GabareenJ. W. GaryW. T. FordR. CheaibTim AdyeR. AyadR. AyadS. StrackaA. SeidenM. MuneratoHeiko LackerA. JawaheryI. M. PeruzziG. CibinettoR. D. KassJ. A. ErnstV. SantoroA. J. MartinezE. FeltresiC. TouramanisJ. M. LoseccoEnrico RobuttiP. OngmongkolkulCorrado AngeliniA. P. OnuchinStephen SekulaP. RoudeauD. Lopes PegnaNicola NeriS. I. SerednyakovF. BianchiA. E. RubinN. B. SinevBogdan MalaescuH. H. F. ChoiL. SunChunhui ChenAlberto CervelliR. ContriA. KhanV. P. DruzhininC. BozziO. GrünbergAidan Randle-condeG. De NardoK. HonscheidG. GrosdidierC. A. ChavezAdrian John BevanA. PalanoJ. ChauveauGiulia CasarosaM. PosoccoM. A. MazzoniG. WormserA. HafnerJ. KrosebergB. EchenardD. BernardN. GagliardiT. SchroederC. L. LeeD. DujmicW. DunwoodieElisa ManoniA. J. EdwardsS. PlayferPhilippe GrenierL. PiemonteseA. V. TelnovM. T. GrahamP. BiassoniE. O. OlaiyaMatteo RamaS. PrellFlorian Urs BernlochnerF. PalomboE. GabathulerW. R. InnesJames D. OlsenJames H CochranV. PoireauL. T. KerthA. LusianiF. C. PorterD. J. AsgeirssonT. M. HongA. AdametzP. TarasE. P. SolodovR. FacciniF. FerrarottoA. J. LankfordM. GasperoF. Le DiberderJ. P. ColemanP. J. ClarkJ. D. RichmanD. BettoniClaudio CampagnariF. FortiR. GodangR. GodangI. GarziaD. H. WrightC. PatrignaniH. L. LynchV. TisserandG. A. CowanL. Li GioiD. M. StromJ. Va’vraT. LueckGabriele SimiC. L. DavisChristopher WestYu I. SkovpenD. GambaF. SimonettoR. H. SchindlerC. VossB. N. RatcliffR. SchwierzC. C. YoungW. T. MeyerH. KochN. GuttmanR. KroegerB. SpaanW. GradlL. LanceriR. C. FieldG. FinocchiaroV. LuthM. S. AlamA. SnyderF. F. WilsonB. StuguC. HeartyD. J. SummersG. MarchioriR. J. SobieL. VitaleF. Martinez-vidalDominik MüllerM. FritschG. LynchM. L. KocianMarco BombenP. C. BloomA. G. DenigJ. E. BrauYu. G. KolomenskyK. Yu TodyshevM. H. SchuneU. UwerR. StroiliM. BellisAndrea Rodriguez PerezJames R. WilsonH. BriandG. EigenI. M. NugentJ. Garra TicoD. S. ChaoM. DavierA. RoodmanE. FioravantiT. PulliamRoland WaldiF. FerroniPaul Fraser HarrisonP. M. PatelStephen Robert WagnerK. R. SchubertG. SciollaB. HamiltonM. EbertM. L. PerlZ. J. GuoJoseph Izensubject
PhysicsNuclear physics010308 nuclear & particles physicsElectron–positron annihilationPhysics beyond the Standard Model0103 physical sciencesHiggs bosonGeneral Physics and AstronomySigmaLeptoquark010306 general physics01 natural sciencesStandard Modeldescription
Based on the full BaBar data sample, we report improved measurements of the ratios R(D(*)) = B(B -> D(*) Tau Nu)/B(B -> D(*) l Nu), where l is either e or mu. These ratios are sensitive to new physics contributions in the form of a charged Higgs boson. We measure R(D) = 0.440 +- 0.058 +- 0.042 and R(D*) = 0.332 +- 0.024 +- 0.018, which exceed the Standard Model expectations by 2.0 sigma and 2.7 sigma, respectively. Taken together, our results disagree with these expectations at the 3.4 sigma level. This excess cannot be explained by a charged Higgs boson in the type II two-Higgs-doublet model. We also report the observation of the decay B -> D Tau Nu, with a significance of 6.8 sigma.
year | journal | country | edition | language |
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2012-09-06 | Physical Review Letters |