| Autor: |
G. Flügge, L. Criegee, W. Zimmermann, K. Wacker, W. Lührsen, U. Timm, G. Franke, P. Harms, S. Wolff, J. D. Fox, Volker Blobel, J. Burger, M. Rössler, H. C. Dehne, A. F. Garfinkel, Claus Grupen, P. Waloschek, Wolfgang Wagner, Th. Kahl, E. Lohrmann, A. Bäcker, E. Hackmack, Ch. Gerke, Gideon Alexander, R. Schmitz, B. Koppitz, G. G. Winter, K. Derikum, G. Horlitz, R. Devenish, E. Lehmann, G. Knies, H. J. Meyer |
| Rok vydání: |
1978 |
| Předmět: |
|
| Zdroj: |
Physics Letters B. 73:99-104 |
| ISSN: |
0370-2693 |
| DOI: |
10.1016/0370-2693(78)90181-8 |
| Popis: |
Annihilation of e+e− into final states with a single electron has been studied with the PLUTO detector at the DORIS storage ring at CMS energies from 3.6 to 5 GeV. In the sample of 4-prong events without any detected photon we observe 21 events which we assign to the reaction e+e− → τ+τ− → ννe + νϱ0π. We obtain a branching ratio for τ+ → νϱ0π+ of 0.050 ± 0.015 with an overall systematic uncertainty of 30%. The data are consistent with the ϱπ coming from an A1 meson. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
