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arXiv · hep-ex/0210039

Hadronic structure in tau- -> pi- pi- pi+ neutrino decays

Edward I. Shibata
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Abstract

A model-dependent analysis of the hadronic substructure in tau- -> pi- pi- pi+ neutrino decay is reported. The decay is dominated by the process tau- -> a1(1260)- + neutrino, in which a1(1260)- -> rho0 pi- in an S-wave decay. Amplitudes involving a1(1260) decays into isoscalars, especially a_1(1260)- -> f0(600)pi-, are large. tau- -> pi- pi- pi+ neutrino decays via the pseudoscalar pi(1300)- are small. These results support the resonant substructure reported in the previously reported analysis of tau- -> pi0 pi0 pi- neutrino decay mode from the same CLEO II data sample.

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Edward I. Shibata. 2002-10-16. Hadronic structure in tau- -> pi- pi- pi+ neutrino decays. https://doi.org/10.1016/s0920-5632(03)80305-5

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