@article{5cad1ffa8610463eb550bbb57d63cc73,
title = "Measurement of the τ topological branching ratios at LEP",
abstract = "The inclusive branching ratios of the τ lepton to one, three and five charged particle final states are measured from data collected with the OPAL detector at LEP. The data sample consists of 12707e+e- → τ+τ- candidate events and has an estimated background of 1.9%. The branching ratios are obtained from a simultaneous fit to the data which gives B1 = 84.48 ± 0.27 (stat) ±0.23 (sys)%, B3 = 15.26±0.26±0.22% and B5 = 0.26±0.06±0.05% respectively where B1 + B3 + B5 is constrained to equal one. The inclusive one-prong branching ratio is found to be significantly lower than the 1990 Particle Data Group world average while the branching ratio to three charged particles is correspondingly higher. The five-prong branching ratio is in agreement with the world average measurement.",
author = "{OPAL Collaboration} and Acton, {P. D.} and G. Alexander and J. Allison and Allport, {P. P.} and Anderson, {K. J.} and S. Arcelli and A. Astbury and D. Axen and G. Azuelos and Bahan, {G. A.} and Baines, {J. T.M.} and Ball, {A. H.} and J. Banks and Barker, {G. J.} and Barlow, {R. J.} and S. Barnett and Batley, {J. R.} and G. Beaudoin and A. Beck and J. Becker and T. Behnke and Bell, {K. W.} and G. Bella and P. Berlich and S. Bethke and O. Biebel and U. Binder and Bloodworth, {I. J.} and P. Bock and B. Boden and Bosch, {H. M.} and S. Bougerolle and H. Breuker and Brown, {R. M.} and R. Brun and A. Buijs and Burckhart, {H. J.} and P. Capiluppi and Carnegie, {R. K.} and Carter, {A. A.} and Carter, {J. R.} and Chang, {C. Y.} and Charlton, {D. G.} and Clarke, {P. E.L.} and I. Cohen and Collins, {W. J.} and Conboy, {J. E.} and M. Cooper and M. Couch and E. Etzion",
note = "Publisher Copyright: {\textcopyright} 1992.",
year = "1992",
month = aug,
day = "27",
doi = "10.1016/0370-2693(92)91117-R",
language = "אנגלית",
volume = "288",
pages = "373--385",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier",
number = "3-4",
}