Title

Hadronic structure in the decay τ-→π-π0ντ

Document Type

Article

Publication Date

6-1-2000

Abstract

We report on a study of the invariant mass spectrum of the hadronic system in the decay τ →π π ν . This study was performed with data obtained with the CLEO II detector operating at the CESR e e collider. We present fits to phenomenological models in which resonance parameters associated with the ρ(770) and ρ(1450) mesons are determined. The π π spectral function inferred from the invariant mass spectrum is compared with data on e e π π as a test of the conserved vector current theorem. We also discuss the implications of our data with regard to estimates of the hadronic contribution to the muon anomalous magnetic moment. ©2000 The American Physical Society. - - 0 + - - 0 + - + - τ

Publication Name

Physical Review D - Particles, Fields, Gravitation and Cosmology

Volume Number

61

First Page

1

Last Page

19

Issue Number

11

Article

112002

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