6533b7cffe1ef96bd12599ed
RESEARCH PRODUCT
Three-prong τ decays with charged kaons
Barate RBuskulic DDecamp DGhez PGoy CLees JpLucotte AMinard MnNief JyPietrzyk BCasado MpChmeissani MComas PCrespo JmDelfino MFernandez EFernandez Bosman MGarrido LJuste AMartinez MMerino GMiquel RMir LmPadilla CPark IcPascual APerlas JaRiu ISanchez FTeubert FColaleo ACreanza DDe Palma MGelao GIaselli GMaggi GMaggi MMarinelli NNuzzo SRanieri ARaso GRuggieri FSelvaggi GSilvestris LTempesta PTricomi AZito GHuang XLin JOuyang QWang TXie YXu RXue SZhang JZhang LZhao WAbbaneo DAlemany RBecker UBazarko AoBright Thomas PCattaneo MCerutti FDissertori GDrevermann HForty RwFrank MHagelberg RHansen JbHarvey JJanot PJost BKneringer EKnobloch JLehraus ILutters GMato PMinten AMoneta LPacheco APusztaszeri JfRanjard FRizzo GRolandi LRousseau DSchlatter DSchmitt MSchneider OTejessy WTomalin IrWachsmuth HWagner AAjaltouni ZBarres ABoyer CFalvard AFerdi CGay PGuicheney CHenrard PJousset JMichel BMonteil SMontret JcPallin DPerret PPodlyski FProriol JRosnet PRossignol JmFearnley THansen JdHansen JrHansen PhNilsson BsRensch BWaananen ADaskalakis GKyriakis AMarkou CSimopoulou ESiotis IVayaki ABlondel ABonneaud GBrient JcBourdon PRouge ARumpf MValassi AVerderi MVideau HCandlin DjParsons MiFocardi EParrini GZachariadou KCorden MGeorgiopoulos CJaffe DeAntonelli ABencivenni GBologna GBossi FCampana PCapon GCasper DChiarella VFelici GLaurelli PMannocchi GMurtas FMurtas GpPassalacqua LPepe Altarelli MCurtis LDorris SjHalley AwKnowles IgLynch JgO'shea VRaine CScarr JmSmith KTeixeira Dias PThompson AsThomson EThomson FTurnbull RmBuchmuller ODhamotharan SGeweniger CGraefe GHanke PHansper GHepp VKluge EePutzer ASommer JTittel KWerner SWunsch MBeuselinck RBinnie DmCameron WDornan PjGirone MGoodsir SMartin EbMoutoussi ANash JSedgbeer JkSpagnolo PStacey AmWilliams MdGhete VmGirtler PKuhn DRudolph GBetteridge ApBowdery CkColrain PCrawford GFinch AjFoster FHughes GJones RwSloan TWilliams MiGalla AGiehl IGreene AmHoffmann CJakobs KKleinknecht KQuast GRenk BRohne ESander HgVan Gemmeren PZeitnitz CAubert JjBenchouk CBonissent ABujosa GCarr JCoyle PDiaconu CEtienne FKonstantinidis NLeroy OMotsch FPayre PTalby MSadouki AThulasidas MTrabelsi KAleppo MAntonelli MRagusa FBerlich RBlum WBuscher VDietl HGanis GGotzhein CKroha HLutjens GLutz GManner WMoser HgRichter RRosado Schlosser ASchael SSettles RSeywerd HSt Denis RStenzel HWiedenmann WWolf GBoucrot JCallot OChen SChoi YCordier ADavier MDuflot LGrivaz JfHeusse PHocker AJacholkowska AJacquet MKim DwLe Diberder FLefrancois JLutz AmNikolic ISchune MhSimion STournefier EVeillet JjVideau IZerwas DAzzurri PBagliesi GBatignani GBettarini SBozzi CCalderini GMassimo CarpinelliCiocci MaCiulli VDell'orso RFantechi RFerrante IFoa LForti FGiassi AGiorgi MaGregorio ALigabue FLusiani AMarrocchesi PsMessineo APalla FSanguinetti GSciaba ASteinberger JTenchini RTonelli GVannini CVenturi AVerdini PgBlair GaBryant LmChambers JtGao YGreen MgMedcalf TPerrodo PStrong JaVon Wimmersperg Toeller JhBotterill DrClifft RwEdgecock TrHaywood SMaley PNorton PrThompson JcWright AeBloch Devaux BColas PEmery SKozanecki WLancon ELemaire McLocci EPerez PRander JRenardy JfRoussarie ASchuller JpSchwindling JA. TrabelsiVallage BBlack SnDann JhJohnson RpKim HyLitke AmMcneil MaTaylor GBooth CnBoswell RBrew CajCartwright SCombley FKelly MsLehto MNewton WmReeve JThompson LfBohrer ABrandt SCowan GGrupen CSaraiva PSmolik LStephan FApollonio MBosisio LDella Marina RGiannini GGobbo BMusolino GRothberg JWasserbaech SArmstrong SrCharles EElmer PFerguson DpsGonzalez SGreening TcHayes OjHu HJin SMcnamara PaNachtman JmNielsen JOrejudos WPan YbSaadi YScott IjWalsh JWu SlWu XYamartino JmZobernig G.subject
PhysicsSystematic errorTime projection chamberPhysics and Astronomy (miscellaneous)010308 nuclear & particles physicsBranching fractionHigh Energy Physics::PhenomenologySettore FIS/01 - Fisica SperimentaleVECTOR01 natural sciencesMESONSParticle identificationPHYSICS0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]High Energy Physics::ExperimentAtomic physics010306 general physicsEngineering (miscellaneous)Particle Physics - Experimentdescription
Final states with charged kaons in three-prong τ decays are studied by exploiting the particle identification from the dE/dx measurement. The results are based on a sample of about 1.6 × 105 detected τ pairs collected with the ALEPH detector between 1991 and 1995 around the Z peak. The following branching ratios have been measured: B(τ- → K−K+π−ντ) = (1.63 ± 0.21 ± 0.17) × 10−3, B(τ− → K−π+π−ντ) = (2.14 ± 0.37 ± 0.29) × 10−3, B(τ− → K−K+π−π0ντ) = (0.75 ± 0.29 ± 0.15) × 10−3, and B(τ− → K−π+π−π0ντ) = (0.61 ± 0.39 ± 0.18) × 10−3. The first two measurements are more precise than the current world averages, while the last two channels are investigated for the first time. The 95% C.L. upper limit on the branching ratio for the decay τ− → K−K+K−ντ is 0.19 × 10−3. A study of intermediate states occurring in the K−K+π−ντ and K−π+π−ντ decays is also presented. Final states with charged kaons in three-prong τ decays are studied by exploiting the particle identification from the dE/dx measurement. The results are based on a sample of about 1.6 x 105 detected τ pairs collected with the ALEPH detector between 1991 and 1995 around the Z peak. The following branching ratios have been measured: B(τ- → K-K+π-ντ) = (1.63 ± 0.21 ± 0.17) x 10-3, B(τ- → K-π+π-ντ)=(2.14 ± 0.37 ± 0.29) x 10-3, B (τ- → K-K+π-π0ντ) = (0.75 ± 0.29 ± 0.15) x 10-3, and B(τ- → K-π+π-π0ν τ) = (0.61 ± 0.39 ± 0.18) x 10-3. The first two measurements are more precise than the current world averages, while the last two channels are investigated for the first time. The 95% C.L. upper limit on the branching ratio for the decay τ- → K-K+K-ντ is 0.19 x 10-3. A study of intermediate states occurring in the K-K+π-ντ and K-π+π-ντ decays is also presented.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-01-01 |