| Autor: |
U. Binder, V. Shevchenko, V. Matveev, A. Walther, R. Davis, K. W. McLean, J. Spengler, J. P. Donker, J. Stiewe, Holger Schulz, Y. Oku, R. Gläser, K. Strahl, J. A. McKenna, G. Tsipolitis, R. S. Orr, Hermann Kolanoski, G. Harder, William R. Frisken, G. Kernel, R. D. Appuhn, P. Padley, A. Yagil, A. Nippe, D. B. Macfarlane, R. Ammar, V. Tchistilin, A. Semenov, D. J. Gilkinson, Douglas Gingrich, D. Coppage, M. Danilov, P. M. Patel, R. Childers, J. C. Gabriel, U. Matthiesen, M. Schäfer, Yu. Zaitsev, J. D. Prentice, A. W. Nilsson, V. Lubimov, Leif J. Jönsson, K. R. Schubert, D. Wegener, H. C. J. Seywerd, N. Kwak, W. Schmidt-Parzefall, J. D. Swain, H. Schröder, A. Golutvin, Anton Babaev, Robert K. Kutschke, R. C. Fernholz, B. Boštjančič, C. W. Darden, R. Waldi, P. Križan, D. Kamp, V. Soloshenko, J. A. Parsons, H. Kapitza, I. V. Gorelov, F. Sefkow, P. Böckmann, B. Spaan, A. Drescher, J. C. Yun, T. S. Yoon, P. C. H. Kim, S. Kanekal, B. Fominykh, A. Krüger, V. Ryltsov, I. Tichomirov, T. Ruf, H. Scheck, S. Ball, H. Albrecht, R. Wurth, G. Schweda, K. W. Edwards |
| Rok vydání: |
1988 |
| Předmět: |
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| Zdroj: |
Physics Letters B. 202:149-153 |
| ISSN: |
0370-2693 |
| Popis: |
Using the ARGUS detector at the e + e − storage ring DORIS II, we have observed the decay τ − → π − π − π − π + π + ν τ in tau-pair events produced at center-or-mass energies between 9.4 and 10.6 GeV. From the 5π invariant mass distribution we derive an upper limit of m ( ν τ ) c 2 at the 95% confidence level. The branching ratio for this decay channel is found to be (0.064±0.023±0.01)%. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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