Measurement of the branching fraction [ital scrB]([tau][sup [minus]][r arrow][ital h][sup [minus]][r arrow][pi][sup 0][nu][sub [tau]])

Journal Article · Mon Jun 13 04:00:00 EDT 1994 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.72.3762· OSTI ID:7296166

Artuso, M; Goldberg, M; He, D; Horwitz, N; Kennett, R; Mountain, R; Moneti, G C; Muheim, F; Mukhin, Y; Playfer, S; Rozen, Y; Stone, S; Thulasidas, M; Vasseur, G; Xing, X; Zhu, G; Bartelt, J; Csorna, S E; Egyed, Z; Jain, V ; Kinoshita, K; Barish, B; Chadha, M; Chan, S; Cowen, D F; Eigen, G; Miller, J S; O'Grady, C; Urheim, J; Weinstein, A J; Acosta, D; Athanas, M; Masek, G; Paar, H P; Sivertz, M; Gronberg, J; Kutschke, R; Menary, S; Morrison, R J; Nakanishi, S; Nelson, H N; Nelson, T K; Qiao, C; Richman, J D; Ryd, A; Tajima, H; Sperka, D; Witherell, M S; Procario, M; Balest, R; Cho, K; Daoudi, M; Ford, W T; Johnson, D R; Lingel, K; Lohner, M; Rankin, P; Smith, J G; Alexander, J P; Bebek, C; Berkelman, K; Bloom, K; Browder, T E; Cassel, D G; Cho, H A; Coffman, D M; Crowcroft, D S; Drell, P S; Ehrlich, R; Gaidarev, P; Galik, R S; Garcia-Sciveres, M; Geiser, B; Gittelman, B; Gray, S W; Hartill, D L; Heltsley, B K

Using data from the CLEO II detector at the Cornell Electron Storage Ring, we measure [ital scrB]([tau][sup [minus]][r arrow][ital h][sup [minus]][pi][sup 0][nu][sub [tau]]) where [ital h][sup [minus]] refers to either [pi][sup [minus]] or [ital K][sup [minus]]. We use three different methods to measure this branching fraction. The combined result is [ital scrB]([tau][sup [minus]][r arrow][ital h][sup [minus]][pi][sup 0][nu][sub [tau]])=0.2587[plus minus]0.0012[plus minus]0.0042, in good agreement with standard model predictions.

• OSTI ID: 7296166
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 72:24; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
BRANCHING RATIO
DECAY
ELEMENTARY PARTICLES
FERMIONS
HADRONS
HEAVY LEPTONS
KAONS
KAONS MINUS
LEPTONS
MASSLESS PARTICLES
MATHEMATICAL MODELS
MESONS
NEUTRINOS
PARTICLE DECAY
PARTICLE MODELS
PIONS
PIONS MINUS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
SEMILEPTONIC DECAY
STANDARD MODEL
STORAGE RINGS
STRANGE MESONS
STRANGE PARTICLES
TAU NEUTRINOS
TAU PARTICLES
UNIFIED GAUGE MODELS
WEAK PARTICLE DECAY