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Measurement of tau branching ratios to five charged hadrons

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  • K Ackerstaff
  • G Alexander
  • J Allison
  • N Altekamp
  • K J Anderson
  • S Anderson
  • S Arcelli
  • S Asai
  • S F Ashby
  • D Axen
  • G Azuelos
  • A H Ball
  • E Barberio
  • R J Barlow
  • R Bartoldus
  • J R Batley
  • S Baumann
  • J Bechtluft
  • T Behnke
  • K W Bell
  • G Bella
  • S Bentvelsen
  • S Bethke
  • S Betts
  • O Biebel
  • A Biguzzi
  • S D Bird
  • V Blobel
  • I J Bloodworth
  • M Bobinski
  • P Bock
  • J Bohme
  • M Boutemeur
  • S Braibant
  • P Bright-Thomas
  • R M Brown
  • H J Burckhart
  • C Burgard
  • R Burgin
  • P Capiluppi
  • R K Carnegie
  • A A Carter
  • J R Carter
  • C Y Chang
  • D G Charlton
  • D Chrisman
  • C Ciocca
  • P E L Clarke
  • V Kartvelishvili
  • OPAL Collaboration
  • Laura Kormos
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<mark>Journal publication date</mark>04/1999
<mark>Journal</mark>European Physical Journal C: Particles and Fields
Issue number2
Volume8
Number of pages7
Pages (from-to)183-189
Publication StatusPublished
<mark>Original language</mark>English

Abstract

The branching ratios of the decay of the tau lepton to five charged hadrons have been measured with the OPAL detector at LEP using data collected between 1991 and 1995 at e(+)e(-) centre-of-mass energies close to the Z(0) resonance. The branching ratios are measured to be

B(tau(-) --> 3h(-)2h(+)v(tau)) = (0.091 +/- 0.014 +/- 0.006)%

B(tau(-) --> 3h(-)2h(+)pi(0)v(tau)) = (0.027 +/0 0.018 +/- 0.009)%

where the first error is statistical and the second systematic.