Hadronic structure in the decay τ-→π-π0ντ

Hadronic structure in the decay τ-→π-π0ντ

We report on a study of the invariant mass spectrum of the hadronic system in the decay τ-→π-π0ντ. 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...

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Библиографические подробности
Главные авторы: Anderson, S, Frolov, V, Kubota, Y, Lee, S, Mahapatra, R, O'Neill, J, Poling, R, Riehle, T, Smith, A, Ahmed, S, Alam, MS, Athar, S, Jian, L, Ling, L, Mahmood, A, Saleem, M, Timm, S, Wappler, F, Anastassov, A, Duboscq, J, Gan, K, Gwon, C, Hart, T, Honscheid, K, Kagan, H
Формат: Journal article
Язык:English
Опубликовано: 2000
Описание
Итог:We report on a study of the invariant mass spectrum of the hadronic system in the decay τ-→π-π0ντ. 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-π0 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.

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