Study of the tau meson decay modes with Monte Carlo generator TAUOLA. Status and perspectives

2014/11/13 by O. Shekhovtsova, Olga Shekhovtsova, Shekhovtsova, Olga
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.48550/arxiv.1411.3526

5 pages, 3 figures, talk given at the 13th International Workshop on Tau Lepton Physics Aachen, Germany, 15-19 September, 2014. To appear in Nucl. Phys. Proc. Suppl

arxiv created 2014/11/13 · arxiv updated 2014/11/14

Abstract

In the last two years substantial progress for the simulation of the process: τ^- → π^-π⁺π^- ν_τ by the Monte Carlo generator TAUOLA was achieved. It is related to a new parametrization of the corresponding hadronic current based on the Resonance Chiral Lagrangian and the recent availability of the unfolded distributions from the BaBar Collaboration analysis for all invariant hadronic masses. The theoretical model parameters were fitted to the one-dimensional distributions provided by the BaBar Collaboration and results of the fit are discussed. A set of the hadronic currents for other final states with two and three pseudoscalars is also installed in TAUOLA and the preliminary results for fitting K⁺K^-π^- and π⁰π^- to BaBar and Belle data are presented.

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