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The decay \(\tau \rightarrow f_{1} \pi \nu_{\tau}\) in the Nambu-Jona-Lasinio model

  • D. G. KostuninEmail author
  • A. V. Vishneva
  • M. K. Volkov
Regular Article - Theoretical Physics

Abstract.

The width of the decay \(\tau\rightarrow f_{1} \pi\nu_{\tau}\) has recently been measured by the BaBar experiment. The estimation of this width is given in the framework of the NJL model with the axial-vector mesons. Prediction is in agreement with experimental data. It is shown that the \( \pi - a_{1}\) transition contribution plays an important role and allows us to bring the NJL prediction to the data.

Keywords

Decay Width Chiral Symmetry BaBar Collaboration Compass Collaboration Vector Meson Dominance Model 
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

© SIF, Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • D. G. Kostunin
    • 1
    Email author
  • A. V. Vishneva
    • 2
  • M. K. Volkov
    • 2
  1. 1.Institut für KernphysikKarlsruhe Institute of Technology (KIT)KarlsruheGermany
  2. 2.Bogoliubov Laboratory of Theoretical PhysicsJINRDubnaRussia

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