Study of the decay Τ- → 2π-π+3π0VΤ

Study of the decay Τ- → 2π-π+3π0VΤ

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...

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Bibliografski detalji
Glavni autori: Anderson, S, Kubota, Y, Lee, S, O'Neill, J, Patton, S, Poling, R, Riehle, T, Savinov, V, Smith, A, Alam, MS, Athar, S, Ling, Z, Mahmood, A, Severini, H, Timm, S, Wappler, F, Anastassov, A, Duboscq, J, Fujino, D, Gan, K, Hart, T, Homoelle, D, Honscheid, K, Kagan, H, Kass, R
Format: Journal article
Jezik:English
Izdano: 1997
Opis
Sažetak: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.

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