Published January 17, 2008 | Version v1
Journal article Metadata-only

Measurement of the tau lepton polarisation at LEP2

Creators

  • 1. LPNHE, IN2P3-CNRS, Universite Paris VI et VII, Tour 33 (RdC), 4 place Jussieu, FR-75252 Paris cedex 05 (France)
  • 2. LIP, IST, FCUL-Av. Elias Garcia, 14-1o, PT-1000 Lisbon Codex (Portugal)
  • 3. Institut fuer Hochenergiephysik, Osterreich Akademie der Wissenschaft, Nikolsdorfergasse 18, AT-1050 Vienna (Austria)

Description

A first measurement of the average polarisation Pτ of tau leptons produced in e+e- annihilation at energies significantly above the Z resonance is presented. The polarisation is determined from the kinematic spectra of tau hadronic decays. The measured value Pτ=-0.164±0.125 is consistent with the Standard Model prediction for the mean LEP energy of 197 GeV

Availability note (English)

Available from http://dx.doi.org/10.1016/j.physletb.2007.10.022

Additional details

Identifiers

DOI
10.1016/j.physletb.2007.10.022;
arXiv
arXiv:0710.1368v1;
PII
S0370-2693(07)01267-1;

Publishing Information

Journal Title
Physics Letters. Section B
Journal Volume
659
Journal Issue
1-2
Journal Page Range
p. 65-73
ISSN
0370-2693
CODEN
PYLBAJ

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
39061135
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ANNIHILATION; ELECTRON-POSITRON INTERACTIONS; GEV RANGE 100-1000; HADRONIC PARTICLE DECAY; LEP STORAGE RINGS; POLARIZATION; POSITRONS; STANDARD MODEL; TAU PARTICLES
Descriptors DEC
ACCELERATORS; ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; CYCLIC ACCELERATORS; DECAY; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; FIELD THEORIES; GEV RANGE; GRAND UNIFIED THEORY; HEAVY LEPTONS; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; LEPTONS; MATHEMATICAL MODELS; MATTER; PARTICLE DECAY; PARTICLE INTERACTIONS; PARTICLE MODELS; QUANTUM FIELD THEORY; STORAGE RINGS; SYNCHROTRONS; UNIFIED GAUGE MODELS

Optional Information

Copyright
Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.