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Zeitschrift für Physik C Particles and Fields

, Volume 48, Issue 3, pp 445–452 | Cite as

τ Decays to pions

  • J. H. Kühn
  • A. Santamaria
Article

Abstract

Semileptonic τ decays to two and three pions are considered. Based on recent data for the pion form factor a new prediction for Γ(τ→vπ-0)/Γ(τ→veve) of 1.32±0.05 is derived. The chiral model-supplemented by vector dominance-is used to predict rate and differential distributions for the three pion mode in good agreement with present data. The parity violating asymmetry which has been predicted theoretically and observed experimentally is studied and found to be fairly insensitive towards the details of the model for the hadronic decays.

Keywords

Field Theory Elementary Particle Quantum Field Theory Form Factor Particle Acceleration 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1990

Authors and Affiliations

  • J. H. Kühn
    • 1
  • A. Santamaria
    • 1
  1. 1.Max-Planck-Institut für Physik und AstrophysikMünchen 40Federal Republic of Germany

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