Analysis of BaBar data for three meson tau decay modes using the Tauola generator

Abstract

The hadronic current for the ${\tau }^{-}\to {\pi }^{-}{\pi }^{+}{\pi }^{-}{\nu }_{\tau }$ decay calculated in the framework of the Resonance Chiral Theory with an additional modification to include the $\sigma$ meson is described. Implementation into the Monte Carlo generator Tauola and fitting strategy to get the model parameters using the one-dimensional distributions are discussed. The results of the fit to one-dimensional mass invariant spectrum of the BaBar data are presented.

Comments: 5 pages, 1 figure. Proceedings of the 7th Edition of the International Workshop on Quantum Chromodynamics -QCD@Work: Interantional Workshop on QCD, Theory and Experiment- (16-19 June 2014, Giovinazzo, Italy)