Hadronic spectrum of tau lepton to antipion-neutral pion-tau neutrino decays
Rahmat, Rahmat, 1974-
We report on a study of the invariant mass spectrum of the hadronic system in Ã - [arrow right] Ã - Ã 0 Ã Ã Ã Ã Ã Â½ Ã decays. This study was performed using data obtained with the BABAR detector operating at the PEP-II e + e - collider. We present fits to phenomenological models in which resonance parameters associated with the Ã (770), Ã '(1450) and Ã "(1700) mesons are determined. We also discuss the implications of our data with regard to estimates of the hadronic contribution to the muon anomalous magnetic moment.