E-viri
PDF
Odprti dostop
-
Ammar, R; Baringer, P; Coppage, D; Davis, R; Kelly, M; Kwak, N; Lam, H; Ro, S; Kubota, Y; Lattery, M; Nelson, JK; Perticone, D; Poling, R; Schrenk, S; Wang, R; Alam, MS; Kim, IJ; Nemati, B; Romero, V, V; Sun, CR; Wang, P; Zoeller, MM; Crawford, G; Fulton, R; Gan, KK; Kagan, H; Kass, R; Lee, J; Malchow, R; Morrow, F; Sung, MK; Whitmore, J; Wilson, P; Butler, F; Fu, X; Kalbfleisch, G; Lambrecht, M; Skubic, P; Snow, J; Bortoletto, D; Brown, DN; Dominick, J; McIlwain, RL; Miller, DH; Modesitt, M; Shibata, EI; Schaffner, SF; Shipsey, IP; Battle, M; Ernst, J; Kroha, H; Roberts, S; Sparks, K; Thorndike, EH; Wang, C; Stroynowski, R; Artuso, M; Goldberg, M; Haupt, T; Horwitz, N; Kennett, R; Moneti, GC; Playfer, S
Physical review. D, Particles and fields, 1992-Jun-01, 1992-6-00, 19920601, 1992-06-01, Letnik: 45, Številka: 11Journal Article
Using data accumulated by the CLEO I detector operating at the Cornell Electron Storage Ring, we have measured the ratio {ital R}={Gamma}({tau}{r arrow}{ital e}{bar {nu}}{sub {ital e}}{nu}{sub {tau}})/{Gamma}{sub 1}, where {Gamma}{sub 1} is the {tau} decay rate to final states with one charged particle. We find {ital R}=0.2231{plus minus}0.0044{plus minus}0.0073 where the first error is statistical and the second is systematic. Together with the measured topological one-charged-particle branching fraction, this yields the branching fraction of the {tau} lepton to electrons, {ital B}{sub {ital e}}=0.192{plus minus}0.004{plus minus}0.006.
