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Study of the τ-→3h-2h+ντ decay

Aubert, B. et al. (2005) Study of the τ-→3h-2h+ντ decay. Physical Review D, 72 (7). 072001. ISSN 1550-7998

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The branching fraction of the τ-→3h-2h+ντ decay (h=π,K) is measured with the BABAR detector to be (8.56±0.05±0.42)×10-4, where the first error is statistical and the second systematic. The observed structure of this decay is significantly different from the phase space prediction, with the ρ resonance playing a strong role. The decay τ-→f1(1285)π-ντ, with the f1(1285) meson decaying to four charged pions, is observed and the branching fraction is measured to be (3.9±0.7±0.5)×10-4.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Applied Sciences
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Depositing User: Sharon Beastall
Date Deposited: 30 Jun 2011 11:21
Last Modified: 28 Aug 2021 11:08


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