Identification of hadronic tau decay channels using multivariate analysis (MVA decay mode)

A multivariate analysis is trained and developed to identify the hadronic decay channels of the tau lepton. The analysis exploits the features of the hadronic tau decay products, such as kinematic quantities and angular variables. In comparison to the CMS Hadron-Plus-Strip algorithm, the analysis improves the purity in all of the reconstructed hadronic tau decay channels and increases the efficiency in the decays with at least one neutral pion.