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http://hdl.handle.net/2445/131704
Title: | Study of high-multiplicity three-prong and five-prong τ decays at BABAR |
Author: | Garra Ticó, Jordi Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Leptons (Física nuclear) Experiments Física de partícules Leptons (Nuclear physics) Experiments Particle physics |
Issue Date: | 27-Nov-2012 |
Publisher: | American Physical Society |
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 − → ( 3 π ) − η ν τ , τ − → ( 3 π ) − ω ν τ , and τ − → π − f 1 ( 1285 ) ν τ branching fractions are presented, as well as a new limit on the branching fraction of the second-class current decay τ − → π − η ′ ( 958 ) ν τ . We search for the decay mode τ − → K − η ′ ( 958 ) ν τ and for five-prong decay modes with kaons, and place the first upper limits on their branching fractions. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.86.092010 |
It is part of: | Physical Review D, 2012, vol. 86, num. 9, p. 092010 |
URI: | http://hdl.handle.net/2445/131704 |
Related resource: | https://doi.org/10.1103/PhysRevD.86.092010 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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632432.pdf | 1.32 MB | Adobe PDF | View/Open |
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