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D

D. Axen

Researcher at University of British Columbia

Publications -  678
Citations -  43521

D. Axen is an academic researcher from University of British Columbia. The author has contributed to research in topics: Large Hadron Collider & Lepton. The author has an hindex of 87, co-authored 674 publications receiving 41811 citations. Previous affiliations of D. Axen include University of Tokyo & University of Victoria.

Papers
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Journal ArticleDOI

A measurement of the τ- → e-ν + ̄eντ branching ratio

Giovanni Abbiendi, +342 more
- 04 Feb 1999 - 
TL;DR: The branching ratio for the decay τ − → e − ν e ν τ has been measured using Z 0 decay data collected by the OPAL experiment at LEP.
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Updated measurement of the τ lifetime

R.J. Akers, +336 more
- 03 Nov 1994 - 
TL;DR: In this paper, the authors presented an update of the τ lepton lifetime, using data taken during 1992 and 1993 with the OPAL detector at LEP, and the updated lifetime measurement is: ττ = 288.8 ± 2.2 (stat) ± 1.4 (sys) fs.
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A measurement of electron production in hadronic Z0 decays and a determination of {Mathematical expression}

P. D. Acton, +322 more
TL;DR: In this paper, it was shown that the semileptonic branching fraction of hadrons produced on the Z ≥ 4 GeV/c resonance is the same as the branching fraction measured at the ϒ(4S) resonance, where the sensitivity of the result to this assumption is discussed.
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Measurements with photonic events in e+e− collisions at centre-of-mass energies of 130–140 GeV

G. Alexanderw, +319 more
- 06 Jun 1996 - 
TL;DR: In this paper, the authors measured cross-sections and angular distributions for the production of events with single and multiple photons from data recorded with the OPAL detector at the recently upgraded LEP collider.
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A measurement of the QCD colour factor ratios CA/CF and TF/CF from angular correlations in four-jet events

R.J. Akers, +336 more
TL;DR: In this paper, a simultaneous fit of three selected angular variables from these events by the second order QCD matrix element calculation yields CA/CF=2.11±0.16(stat.)± 0.28(syst.)TF/CF =0.40±0,0.11