Resonant structure of τ→ππ0ντ and τ→ωπντ decays
Physical Review D - Particles, Fields, Gravitation and Cosmology 61:7 (2000) 1-16
Abstract:
The resonant structure of the four pion final state in the decay τ→3ππ0ντ has been analyzed using 4.27 million τ+τ- pairs collected by the CLEO II experiment at the Cornell Electron Storage Ring. A partial wave analysis of the resonant structure of the ô-»3 τ→3ππ0ντ decay has been performed; the spectral decomposition of the four pion system is dominated by the ωπ and a1π final states. The mass and width of the ρ′ resonance have been extracted from a fit to the τ→ωπντ spectral function. We have searched for second class currents in the decay τ→ωπντ using spin-parity analysis and established an upper limit on the non-vector current contribution. ©2000 The American Physical Society.Update of the search for the neutrinoless decay τ→μγ
Physical Review D American Physical Society (APS) 61:7 (2000) 071101
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