Invariant mass spectra of ${\tau }^{-}\to h^{-}{h}^{-}{h}^{+}\nu$ decays

Abstract

Using 342$f{b}^{-1}$ of $e^{+}{e}^{-}$ annihilation data collected with the BABAR detector at the SLAC PEP-II electron-positron asymmetric energy collider operating at a center-of-mass energies near 10.58GeV, we present the preliminary measurements of the invariant mass distributions of ${\tau }^{-}\to {\pi }^{-}{\pi }^{-}{\pi }^{+}\nu$, ${\tau }^{-}\to K^{-}{\pi }^{-}{\pi }^{+}\nu$, ${\tau }^{-}\to K^{-}{\pi }^{-}{K}^{+}\nu$ and ${\tau }^{-}\to K^{-}{K}^{-}{K}^{+}\nu$, where events with $K_S^0\to {\pi }^{-}{\pi }^{+}$ decays are excluded.

The 12th International Workshop on Tau Lepton Physics Nagoya, Japan, 17-21 September, 2012

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