BABAR Collaboration (Including: Gershon, T. J., Harrison, P. F., Latham, Thomas and Puccio, E. M. T.). (2012) Study of high-multiplicity three-prong and five-prong τ decays at BABAR. Physical Review D (Particles, Fields, Gravitation and Cosmology), Volume 86 (Number 9). Article number 092010 . doi:10.1103/PhysRevD.86.092010 ISSN 1550-7998.

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Abstract

We present measurements of the branching fractions of three-prong and five-prong τ decay modes using a sample of 430 million τ lepton pairs, corresponding to an integrated luminosity of 468  fb-1, collected with the BABAR detector at the PEP-II asymmetric-energy e+e- storage rings at SLAC National Accelerator Laboratory. The τ-→(3π)-ηντ, τ-→(3π)-ωντ, and τ-→π-f1(1285)ντ branching fractions are presented, as well as a new limit on the branching fraction of the second-class current decay τ-→π-η′(958)ντ. We search for the decay mode τ-→K-η′(958)ντ and for five-prong decay modes with kaons, and place the first upper limits on their branching fractions.

Item Type:	Journal Article
Divisions:	Faculty of Science, Engineering and Medicine > Science > Physics
Journal or Publication Title:	Physical Review D (Particles, Fields, Gravitation and Cosmology)
Publisher:	American Physical Society
ISSN:	1550-7998
Official Date:	2012
Dates:	Date Event 2012 Published
Volume:	Volume 86
Number:	Number 9
Page Range:	Article number 092010
DOI:	10.1103/PhysRevD.86.092010
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access

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