Search for Lepton-Flavor and Lepton-Number Violation in the Decay tau->lhh

Details Search for Lepton-Flavor and Lepton-Number Violation in the Decay tau->lhh Search for Lepton-Flavor and Lepton-Number Violation in the Decay tau->lhh

2005-06-27

arxiv.org/abs/hep-ex/0506066v1

Phys.Rev.Lett.95:191801,2005

Physics

High Energy Physics

High Energy Physics - Experiment

7 pages, 2 figures, submitted to PRL

Scientific paper

10.1103/PhysRevLett.95.191801

A search for lepton-flavor and lepton-number violation in the decay of the tau lepton into one charged lepton and two charged hadrons is performed using 221.4 $\mathrm{fb}^{-1}$ of data collected at an $e^+e^-$ center-of-mass energy of 10.58 GeV with the BaBar detector at the PEP-II storage ring. In all 14 decay modes considered, the observed data are compatible with background expectations, and upper limits are set in the range ${\cal B}(\tau\to\ell hh')<(0.7-4.8)\times 10^{-7}$ at 90% confidence level.

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