Study of Three-ProngτDecays and Determination of theA1Parameters
| ISSN: | 0031-9007 |
|---|---|
| DOI: | 10.1103/physrevlett.56.2132 |
| Přístupová URL adresa: | https://explore.openaire.eu/search/publication?articleId=doi_________::09da791cd3ddc9da3f318077574cf9dc https://doi.org/10.1103/physrevlett.56.2132 |
| Rights: | CLOSED |
| Přírůstkové číslo: | edsair.doi...........09da791cd3ddc9da3f318077574cf9dc |
| Autor: | J. Ludwig, G. B. Mills, G. Donaldson, L.S. Rochester, Jasper Kirkby, Ryszard Stroynowski, Richard Dubois, C. Y. Prescott, C. C. Young, E. E. Elsen, H. Yamamoto, D. E. Koop, W. Ruckstuhl, Stanley G. Wojcicki, R. P. Johnson, G. M. Irwin, A. Courau, M. M. Duro, H. Kichimi, D. L. Pollard, S. G. Gao, Y. Z. Huang, T. Pal, Shuang Wang, Barry C. Barish, M. Sakuda, W. B. Atwood, G. R. Bonneaud, S. S. Sherman, D. E. Klem, A. Ogawa, W. G. Yan, R. Pitthan |
| Rok vydání: | 1986 |
| Předmět: | |
| Zdroj: | Physical Review Letters. 56:2132-2135 |
| ISSN: | 0031-9007 |
| DOI: | 10.1103/physrevlett.56.2132 |
| Popis: | We report the results of a study of the three-prong-decay mode of the tau in data taken with the DELCO detector at the SLAC e/sup +/e/sup -/ storage ring PEP. We determine the total three-prong branching ratio to be B(3) = (12.1 +- 0.5 +- 1.2)% and the exclusive branching ratios B(tau..--> pi../sup +/..pi../sup -/..pi../sup + -/..nu..) = (5.0 +- 1 .0)% and B(tau..--> pi../sup +/..pi../sup -/..pi../sup + -/..pi../sup 0/..nu..) = (6 .0 +- 1.2)%, respectively. The data with three charged pions allow for the determination of the mass and width of the A/sub 1/ resonance as M/sub A//sub 1/ = 1056 +- 20 +- 15 MeV and GAMMA/sub a//sub 1/ = 476/sub -/120/sup +132/ +- 5 4 MeV. |
| Databáze: | OpenAIRE |
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