학술논문
Exclusive branching-fraction measurements of semileptonic tau decays into three charged hadrons, into phipi(-)nu tau, and into phi K(-)nu tau.
Document Type
article
Author
Aubert, B; Bona, M; Boutigny, D; Couderc, F; Karyotakis, Y; Lees, JP; Poireau, V; Tisserand, V; Zghiche, A; Grauges, E; Palano, A; Chen, JC; Qi, ND; Rong, G; Wang, P; Zhu, YS; Eigen, G; Ofte, I; Stugu, B; Abrams, GS; Battaglia, M; Brown, DN; Button-Shafer, J; Cahn, RN; Charles, E; Gill, MS; Groysman, Y; Jacobsen, RG; Kadyk, JA; Kerth, LT; Kolomensky, Yu G; Kukartsev, G; Pegna, D Lopes; Lynch, G; Mir, LM; Orimoto, TJ; Pripstein, M; Roe, NA; Ronan, MT; Wenzel, WA; del Amo Sanchez, P; Barrett, M; Ford, KE; Harrison, TJ; Hart, AJ; Hawkes, CM; Watson, AT; Held, T; Koch, H; Lewandowski, B; Pelizaeus, M; Peters, K; Schroeder, T; Steinke, M; Boyd, JT; Burke, JP; Cottingham, WN; Walker, D; Asgeirsson, DJ; Cuhadar-Donszelmann, T; Fulsom, BG; Hearty, C; Knecht, NS; Mattison, TS; McKenna, JA; Khan, A; Kyberd, P; Saleem, M; Sherwood, DJ; Teodorescu, L; Blinov, VE; Bukin, AD; Druzhinin, VP; Golubev, VB; Onuchin, AP; Serednyakov, SI; Skovpen, Yu I; Solodov, EP; Todyshev, K Yu; Best, DS; Bondioli, M; Bruinsma, M; Chao, M; Curry, S; Eschrich, I; Kirkby, D; Lankford, AJ; Lund, P; Mandelkern, M; Roethel, W; Stoker, DP; Abachi, S; Buchanan, C; Foulkes, SD; Gary, JW; Long, O; Shen, BC; Wang, K; Zhang, L; Hadavand, HK
Source
Physical review letters. 100(1)
Subject
Language
Abstract
Using a data sample corresponding to an integrated luminosity of 342 fb(-1) collected with the BABAR detector at the SLAC PEP-II electron-positron storage ring operating at a center-of-mass energy near 10.58 GeV, we measure B(tau(-)--> pi(-)pi(-)pi+nu(tau)(ex.K(S0))=(8.83+/-0.01+/-0.13)%, B(tau(-) -->K(-)pi(-)pi+nu tau(ex.K(S0))=(0.273+/-0.002+/-0.009)%, B(tau(-) -->K(-)pi(-)K+nu tau)=(0.1346+/-0.0010+/-0.0036)%, and B(tau(-) -->K(-)K(-)K+nu tau)=(1.58+/-0.13+/-0.12)x10;{-5}, where the uncertainties are statistical and systematic, respectively. These include significant improvements over previous measurements and a first measurement of B(tau(-) -->K(-)K(-)K+nu tau) in which no resonance structure is assumed. We also report a first measurement of B(tau(-) -->var phi(-)nu tau)=(3.42+/-0.55+/-0.25)x10(-5), a new measurement of B(tau(-) -->var phi K(-)nu tau)=(3.39+/-0.20+/-0.28)x10(-5) and a first upper limit on B(tau(-) -->K(-)K(-)K+nu tau(ex.var phi)).