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Abstract

"Light mesons from decays of tau lepton and D mesons"

A. C. dos Reis

Centro Brasileiro de Pesquisas Físicas, Rio de Janeiro

Hadronic decays of lepton and D mesons have become a very interesting source of information about light mesons. In D decays the initial state is always JP=0- and the non-resonant component is generally small, providing a very clean environment for measuring resonance parameters. The decay -> + - + is a powerful tool for studying the a1 state. We will present recent results on the D+,Ds+ -> + - + decay from Fermilab E791 experiment, and discuss the prospects of this promising field.

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