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EnglishUsing data collected with the L3 detector at LEP from 1992 to 1995 on the Z peak, we determine the branching fractions of the tau lepton into one, three and five charged particles to be: B(tau --> (1 -prong)) = 85.274 +/- 0.105 +/- 0.073%, B(tau --> (3-prong)) = 14.556 +/- 0.105 +/- 0.076%, B(tau --> (5-prong)) = 0.170 +/- 0.022 +/- 0.026%. The first uncertainties are statistical and the second systematic. The accuracy of these measurements alone is similar to that of the current world average.
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| Titolo: | Measurement of the topological branching fractions of the tau lepton at LEP |
| Autori: | |
| Data di pubblicazione: | 2001 |
| Rivista: | |
| Abstract: | Using data collected with the L3 detector at LEP from 1992 to 1995 on the Z peak, we determine the branching fractions of the tau lepton into one, three and five charged particles to be: B(tau --> (1 -prong)) = 85.274 +/- 0.105 +/- 0.073%, B(tau --> (3-prong)) = 14.556 +/- 0.105 +/- 0.076%, B(tau --> (5-prong)) = 0.170 +/- 0.022 +/- 0.026%. The first uncertainties are statistical and the second systematic. The accuracy of these measurements alone is similar to that of the current world average. |
| Handle: | http://hdl.handle.net/11391/39123 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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