Resonant structure of τ→ππ0ντ and τ→ωπντ decays

Journal article

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.

Authors: Edwards, K; Janicek, R; Patel, P; Sadoff, A; Ammar, R

• Journal: Physical Review D
• Volume: 61
• Issue: 7
• Pages: 1-16
• Publication date: 2000-04-01
• ISSN: 0556-2821
• Language: English