Tau lepton physics: Theory overview

  title={Tau lepton physics: Theory overview},
  author={Antonio Pich},
  • A. Pich
  • Published 10 December 1996
  • Physics
4 Citations

QCD Tests from Tau Decays

16 paginas, 3 figuras, 2 tablas.-- Edited by M. Jamin, O. Nachtmann, G. Domokos, S. Kovesi-Domokos.-- Comunicacion presentada al 20o Johns Hopkins Workshop: Non Perturbative Particle Theory &

Lepton Universality

The Standard Model requires the three known leptonic families to have identical couplings to the gauge bosons. The present experimental tests on lepton universality are reviewed, both for the charged



Electroweak radiative corrections to tau decay.

An analysis of electroweak radiative corrections to tau decays is presented and the total hadronic decay width is shown to be relatively enhanced by 2.36% due mainly to short-distance loop effects.

The anomalous magnetic moment of a charged heavy lepton

The mass dependence of the theoretical contributions to a charged heavy lepton anomalous magnetic moment al identical to 1/2(gl-2) is studied. In particular, it is shown that the weak-interaction

QCD predictions for the decay of the tau lepton.

  • Braaten
  • Physics
    Physical review letters
  • 1988
The semileptonic decay rate of a heavy lepton is shown to be rigorously calculable by use of perturbative QCD, and the resulting prediction is significantly smaller than the present experimental result.

Test of the running of alpha s in tau decays.

From measurements of the hadronic mass distribution, the running coupling constant asss0d is extracted and it is shown that the running of as is in good agreement with the QCD prediction.

Electron-positron annihilation at high energies

The experimental physics programme of PEP and PETRA is presented. The data from 11 independent experiments are collated according to subject matter and compared with theory. The author starts with a

Is a massive tau neutrino just what cold dark matter needs?

The cold dark matter (CDM) scenario for structure formation in the Universe is very attractive and has many successes; however, when its spectrum of density perturbations is normalized to the COBE

Precision tests of the standard electroweak model

Part 1 The standard electroweak model: structure of the standard model, P. Langacker renormalization of the standard model, W. Hollik predictions for e+e- processes, W. Holik radiative corrections to