Measurement of the one-prong hadronic tau branching ratios at LEP

Abstract

The branching ratios of the τ^- -> h^- ν_τ, τ^- -> h^- π^0 ν_τ, τ^- -> h^- >=2 π^0 ν_τdecays have been measured using the 1991-1995 data recorded with the OPAL detector at LEP. These branching ratios are measured simultaneously using three selection criteria and are found to be BR(τ^- -> h^- ν_τ) = (11.98 +/- 0.13 +/- 0.16)% BR(τ^- -> h^- π^0 ν_τ) = (25.89 +/- 0.17 +/- 0.29)% BR(τ^- -> h^- >=2 π^0 ν_τ) = ( 9.91 +/- 0.31 +/- 0.27)% where the first error is statistical and the second is systematic.

23 pages, LaTeX, uses a4p.sty, 9 eps figures included, submitted to Zeit. f. Physik

References in corpus (1)

• A brief review of R-parity-violating couplings

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