Study of the decay Τ- → 2π-π+3π0VΤ

Journal article

The decay Τ- → 2π-π+3π0vΤ has been studied with the CLEO II detector at the Cornell Electron Storage Ring. The branching fraction is measured to be (2.85 ± 0.56 ± 0.51) × 10-4. The result is in good agreement with the isospin expectation but somewhat below the conserved-vector-current prediction. We have searched for resonance substructure in the decay. Within the statistical precision, the decay is saturated by the channels Τ- → π-2π0ωvΤ, 2π-π+ηvΤ, and π-2π0ηvΤ. This is the first observation of this ω decay mode and the branching fraction is measured to be (1.89-0.67+0.74 ± 0.40) × 10-4.

Authors: Anderson, S; Kubota, Y; Lee, S; O'Neill, J; Patton, S

• Journal: Physical Review Letters
• Volume: 79
• Issue: 20
• Pages: 3814-3818
• Publication date: 1997-01-01
• DOI: 10.1103/PhysRevLett.79.3814
• EISSN: 1079-7114
• ISSN: 0031-9007
• Language: English