\batchmode
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\documentstyle[aps]{revtex}

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\makeatother
\newenvironment{tex2html_wrap}{}{}
\setlength{\textheight}{10in}\begin{document}
\pagestyle{empty}
\newpage

{\samepage \clearpage $\chi ^2$
}


\newpage

{\samepage \clearpage $Z^0\rightarrow\tau^+\tau^-$
}


\newpage

{\samepage \clearpage $\tau_\tau = 297\pm 9(stat.)\pm 5(syst.)\ \mbox{\rm fs}.$
}


\stepcounter{section}
\newpage

{\samepage \clearpage $^{(29)}$
}


\newpage

{\samepage \clearpage $^{(14)}$
}


\newpage

{\samepage \clearpage $^{(26)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(4)}$
}


\newpage

{\samepage \clearpage $^{(27)\dagger}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(24)}$
}


\newpage

{\samepage \clearpage $^{(33)}$
}


\newpage

{\samepage \clearpage $^{(32)}$
}


\newpage

{\samepage \clearpage $^{(33)}$
}


\newpage

{\samepage \clearpage $^{(10)}$
}


\newpage

{\samepage \clearpage $^{(16)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(11)}$
}


\newpage

{\samepage \clearpage $^{(33)}$
}


\newpage

{\samepage \clearpage $^{(2)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(22)}$
}


\newpage

{\samepage \clearpage $^{(21)}$
}


\newpage

{\samepage \clearpage $^{(7)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(11)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(20)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(28)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(31)}$
}


\newpage

{\samepage \clearpage $^{(16)}$
}


\newpage

{\samepage \clearpage $^{(16)}$
}


\newpage

{\samepage \clearpage $^{(13)}$
}


\newpage

{\samepage \clearpage $^{(6)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(12)}$
}


\newpage

{\samepage \clearpage $^{(23)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(23)(a)}$
}


\newpage

{\samepage \clearpage $^{(21)}$
}


\newpage

{\samepage \clearpage $^{(7)}$
}


\newpage

{\samepage \clearpage $^{(31)}$
}


\newpage

{\samepage \clearpage $^{(28)}$
}


\newpage

{\samepage \clearpage $^{(3)}$
}


\newpage

{\samepage \clearpage $^{(31)}$
}


\newpage

{\samepage \clearpage $^{(4)}$
}


\newpage

{\samepage \clearpage $^{(16)}$
}


\newpage

{\samepage \clearpage $^{(7)}$
}


\newpage

{\samepage \clearpage $^{(8)}$
}


\newpage

{\samepage \clearpage $^{(25)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(13)}$
}


\newpage

{\samepage \clearpage $^{(13)}$
}


\newpage

{\samepage \clearpage $^{(23)}$
}


\newpage

{\samepage \clearpage $^{(9)}$
}


\newpage

{\samepage \clearpage $^{(28)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(14)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(4)}$
}


\newpage

{\samepage \clearpage $^{(22)}$
}


\newpage

{\samepage \clearpage $^{(16)}$
}


\newpage

{\samepage \clearpage $^{(20)}$
}


\newpage

{\samepage \clearpage $^{(20)}$
}


\newpage

{\samepage \clearpage $^{(25)}$
}


\newpage

{\samepage \clearpage $^{(14)}$
}


\newpage

{\samepage \clearpage $^{(16)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(28)}$
}


\newpage

{\samepage \clearpage $^{(29)}$
}


\newpage

{\samepage \clearpage $^{(4)}$
}


\newpage

{\samepage \clearpage $^{(17)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(20)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(20)}$
}


\newpage

{\samepage \clearpage $^{(29)}$
}


\newpage

{\samepage \clearpage $^{(25)}$
}


\newpage

{\samepage \clearpage $^{(24)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(3)}$
}


\newpage

{\samepage \clearpage $^{(32)}$
}


\newpage

{\samepage \clearpage $^{(8)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(19)}$
}


\newpage

{\samepage \clearpage $^{(24)}$
}


\newpage

{\samepage \clearpage $^{(26)}$
}


\newpage

{\samepage \clearpage $^{(14)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(16)}$
}


\newpage

{\samepage \clearpage $^{(26)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(17)}$
}


\newpage

{\samepage \clearpage $^{(10)}$
}


\newpage

{\samepage \clearpage $^{(18)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(20)}$
}


\newpage

{\samepage \clearpage $^{(16)}$
}


\newpage

{\samepage \clearpage $^{(10)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(33)}$
}


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{\samepage \clearpage $^{(7)}$
}


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{\samepage \clearpage $^{(21)}$
}


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{\samepage \clearpage $^{(6)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(31)}$
}


\newpage

{\samepage \clearpage $^{(22)}$
}


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{\samepage \clearpage $^{(33)}$
}


\newpage

{\samepage \clearpage $^{(22)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(22)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(12)}$
}


\newpage

{\samepage \clearpage $^{(4)}$
}


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{\samepage \clearpage $^{(8)}$
}


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{\samepage \clearpage $^{(27)}$
}


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{\samepage \clearpage $^{(31)}$
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{\samepage \clearpage $^{(27)}$
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{\samepage \clearpage $^{(27)}$
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{\samepage \clearpage $^{(27)}$
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{\samepage \clearpage $^{(27)}$
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{\samepage \clearpage $^{(27)}$
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{\samepage \clearpage $^{(10)}$
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{\samepage \clearpage $^{(27)}$
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{\samepage \clearpage $^{(8)}$
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{\samepage \clearpage $^{(19)}$
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{\samepage \clearpage $^{(16)}$
}


\newpage

{\samepage \clearpage $^{(30)}$
}


\newpage

{\samepage \clearpage $^{(20)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(13)(b)}$
}


\newpage

{\samepage \clearpage $^{(13)}$
}


\newpage

{\samepage \clearpage $^{(12)}$
}


\newpage

{\samepage \clearpage $^{(23)}$
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\newpage

{\samepage \clearpage $^{(20)}$
}


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{\samepage \clearpage $^{(24)}$
}


\newpage

{\samepage \clearpage $^{(32)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(16)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(30)}$
}


\newpage

{\samepage \clearpage $^{(18)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(31)}$
}


\newpage

{\samepage \clearpage $^{(11)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(7)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(16)}$
}


\newpage

{\samepage \clearpage $^{(15)}$
}


\newpage

{\samepage \clearpage $^{(7)}$
}


\newpage

{\samepage \clearpage $^{(33)}$
}


\newpage

{\samepage \clearpage $^{(32)}$
}


\newpage

{\samepage \clearpage $^{(11)}$
}


\newpage

{\samepage \clearpage $^{(3)}$
}


\newpage

{\samepage \clearpage $^{(15)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(28)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(20)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(33)}$
}


\newpage

{\samepage \clearpage $^{(24)}$
}


\newpage

{\samepage \clearpage $^{(15)}$
}


\newpage

{\samepage \clearpage $^{(1)}$
}


\newpage

{\samepage \clearpage $^{(17)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(29)}$
}


\newpage

{\samepage \clearpage $^{(19)}$
}


\newpage

{\samepage \clearpage $^{(19)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(31)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(16)}$
}


\newpage

{\samepage \clearpage $^{(16)}$
}


\newpage

{\samepage \clearpage $^{(33)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(23)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(30)}$
}


\newpage

{\samepage \clearpage $^{(16)}$
}


\newpage

{\samepage \clearpage $^{(23)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(4)}$
}


\newpage

{\samepage \clearpage $^{(28)}$
}


\newpage

{\samepage \clearpage $^{(31)}$
}


\newpage

{\samepage \clearpage $^{(3)}$
}


\newpage

{\samepage \clearpage $^{(28)}$
}


\newpage

{\samepage \clearpage $^{(25)}$
}


\newpage

{\samepage \clearpage $^{(7)}$
}


\newpage

{\samepage \clearpage $^{(16)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(33)}$
}


\newpage

{\samepage \clearpage $^{(9)}$
}


\newpage

{\samepage \clearpage $^{(5)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(24)}$
}


\newpage

{\samepage \clearpage $^{(21)}$
}


\newpage

{\samepage \clearpage $^{(16)}$
}


\newpage

{\samepage \clearpage $^{(16)}$
}


\newpage

{\samepage \clearpage $^{(20)}$
}


\newpage

{\samepage \clearpage $^{(6)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(29)}$
}


\newpage

{\samepage \clearpage $^{(32)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(20)}$
}


\newpage

{\samepage \clearpage $^{(16)}$
}


\newpage

{\samepage \clearpage $^{(20)}$
}


\newpage

{\samepage \clearpage $^{(1)}$
}


\newpage

{\samepage \clearpage $^{(2)}$
}


\newpage

{\samepage \clearpage $^{(3)}$
}


\newpage

{\samepage \clearpage $^{(4)}$
}


\newpage

{\samepage \clearpage $^{(5)}$
}


\newpage

{\samepage \clearpage $^{(6)}$
}


\newpage

{\samepage \clearpage $^{(7)}$
}


\newpage

{\samepage \clearpage $^{(8)}$
}


\newpage

{\samepage \clearpage $^{(9)}$
}


\newpage

{\samepage \clearpage $^{(10)}$
}


\newpage

{\samepage \clearpage $^{(11)}$
}


\newpage

{\samepage \clearpage $^{(12)}$
}


\newpage

{\samepage \clearpage $^{(13)}$
}


\newpage

{\samepage \clearpage $^{(14)}$
}


\newpage

{\samepage \clearpage $^{(15)}$
}


\newpage

{\samepage \clearpage $^{(16)}$
}


\newpage

{\samepage \clearpage $^{(17)}$
}


\newpage

{\samepage \clearpage $^{(18)}$
}


\newpage

{\samepage \clearpage $^{(19)}$
}


\newpage

{\samepage \clearpage $^{(20)}$
}


\newpage

{\samepage \clearpage $^{(21)}$
}


\newpage

{\samepage \clearpage $^{(22)}$
}


\newpage

{\samepage \clearpage $^{(23)}$
}


\newpage

{\samepage \clearpage $^{(24)}$
}


\newpage

{\samepage \clearpage $^{(25)}$
}


\newpage

{\samepage \clearpage $^{(26)}$
}


\newpage

{\samepage \clearpage $^{(27)}$
}


\newpage

{\samepage \clearpage $^{(28)}$
}


\newpage

{\samepage \clearpage $^{(29)}$
}


\newpage

{\samepage \clearpage $^{(30)}$
}


\newpage

{\samepage \clearpage $^{(31)}$
}


\newpage

{\samepage \clearpage $^{(32)}$
}


\newpage

{\samepage \clearpage $^{(33)}$
}


\newpage

{\samepage \clearpage $^\dagger$
}


\newpage

{\samepage \clearpage $^{(a)}$
}


\newpage

{\samepage \clearpage $^{(b)}$
}


\stepcounter{section}
\newpage

{\samepage \clearpage $m_\tau$
}


\newpage

{\samepage \clearpage $\tau_\tau$
}


\newpage

{\samepage \clearpage $\tau\rightarrow e\nu_e\nu_\tau$
}


\newpage

{\samepage \clearpage $B_e$
}


\newpage

{\samepage \clearpage \[
  \tau_\tau = \tau_\mu {\left(m_\mu\over m_\tau\right)}^5 B_e,
\]
}


\newpage

{\samepage \clearpage $m_\mu$
}


\newpage

{\samepage \clearpage $\tau_\mu$
}


\newpage

{\samepage \clearpage $Z^0$
}


\stepcounter{section}
\newpage

{\samepage \clearpage $375\times 578$
}


\newpage

{\samepage \clearpage $22\ \mu$
}


\newpage

{\samepage \clearpage $20\ \mu$
}


\newpage

{\samepage \clearpage $180\ \mu$
}


\newpage

{\samepage \clearpage % latex2html id marker 1583
$|\cos\theta| < 0.85\ (0.75)$
}


\newpage

{\samepage \clearpage $6\ \mu$
}


\newpage

{\samepage \clearpage $7\ \mu$
}


\newpage

{\samepage \clearpage $_2$
}


\newpage

{\samepage \clearpage $\pm 43$
}


\newpage

{\samepage \clearpage $70\ \mu$
}


\newpage

{\samepage \clearpage % latex2html id marker 1595
$|\cos\theta| < 0.85$
}


\newpage

{\samepage \clearpage % latex2html id marker 1597
$|\cos\theta| < 0.82$
}


\newpage

{\samepage \clearpage % latex2html id marker 1599
$|\cos\theta| = 0.99$
}


\newpage

{\samepage \clearpage ${\sigma_E\over E} \simeq {15\%\over\sqrt{E (\mbox{\scriptsize\rm GeV})}}$
}


\stepcounter{subsection}
\newpage

{\samepage \clearpage $11\ \mu$
}


\newpage

{\samepage \clearpage $76\ \mu$
}


\newpage

{\samepage \clearpage $38\ \mu$
}


\newpage

{\samepage \clearpage $80\ \mu$
}


\newpage

{\samepage \clearpage $\left({\delta p_{\rm T}\over p_{\rm T}}\right)^2 = 0.01^2
+ (0.0026\ p_{\rm T})^2$
}


\newpage

{\samepage \clearpage $p_{\rm T}$
}


\stepcounter{subsection}
\newpage

{\samepage \clearpage $\approx 0.8\ \mu$
}


\newpage

{\samepage \clearpage $\approx 2.6\ \mu$
}


\newpage

{\samepage \clearpage $\approx 700\ \mu$
}


\newpage

{\samepage \clearpage $\ \mu$
}


\newpage

{\samepage \clearpage $7\pm 2\ \mu$
}


\newpage

{\samepage \clearpage $9\pm 2\ \mu$
}


\stepcounter{section}
\newpage

{\samepage \clearpage $^{-1}$
}


\stepcounter{subsection}
\newpage

{\samepage \clearpage $15^\circ$
}


\newpage

{\samepage \clearpage $^2$
}


\newpage

{\samepage \clearpage $20^\circ$
}


\newpage

{\samepage \clearpage $\Theta_{\rm miss}$
}


\newpage

{\samepage \clearpage $|\cos\Theta_{\rm miss}| < 0.88$
}


\newpage

{\samepage \clearpage $E_{\rm CM}$
}


\newpage

{\samepage \clearpage $0.45\ E_{\rm CM}$
}


\newpage

{\samepage \clearpage $0.33\ E_{\rm CM}$
}


\stepcounter{subsection}
\newpage

{\samepage \clearpage $Z^0\rightarrow hadrons$
}


\newpage

{\samepage \clearpage $(63.0\pm0.3) \%$
}


\newpage

{\samepage \clearpage $(95.1\pm0.3) \%$
}


\newpage

{\samepage \clearpage $(59.9\pm0.4) \%$
}


\newpage

{\samepage \clearpage $1714\pm50$
}


\newpage

{\samepage \clearpage $(96.1\pm0.4) \%$
}


\stepcounter{subsection}
\newpage

{\samepage \clearpage % latex2html id marker 1669
$|\cos\theta|
< 0.72$
}


\newpage

{\samepage \clearpage $|\cos\Theta_{\rm miss}| < 0.80.$
}


\stepcounter{section}
\newpage

{\samepage \clearpage $d$
}


\newpage

{\samepage \clearpage $l_{xy}$
}


\newpage

{\samepage \clearpage % latex2html id marker 1679
\[
  d = l_{xy} \sin\phi = l \sin\theta\sin\phi, 
\]
}


\newpage

{\samepage \clearpage $\phi$
}


\newpage

{\samepage \clearpage % latex2html id marker 1689
$\theta$
}


\newpage

{\samepage \clearpage % latex2html id marker 1680
\[
  <d_+-d_-> = <l_{xy}> \ \delta\phi = <l> \ \sin\theta\ \delta\phi, 
\]
}


\newpage

{\samepage \clearpage $d_+$
}


\newpage

{\samepage \clearpage $d_-$
}


\newpage

{\samepage \clearpage $\delta\phi$
}


\newpage

{\samepage \clearpage % latex2html id marker 1697
$\theta$
}


\newpage

{\samepage \clearpage $<l>$
}


\newpage

{\samepage \clearpage $<l> = <\beta\gamma> c\tau_\tau$
}


\newpage

{\samepage \clearpage $<\beta\gamma>$
}


\stepcounter{subsection}
\newpage

{\samepage \clearpage \begin{eqnarray*}\lefteqn{P(l_i,\sigma_i;l_0,s_0) = } \\ 
 & &  {1\over{l_i s_0\sigma_i\sqrt{2\pi}}}\int
  \exp\left(-{x\over l_0}\right)
  \exp\left(-{{(x-l_i)^2}\over {2s_0^2\sigma_i^2}}\right)dx,
\end{eqnarray*}
}


\newpage

{\samepage \clearpage $l_i$
}


\newpage

{\samepage \clearpage $l_0$
}


\newpage

{\samepage \clearpage $s_0$
}


\newpage

{\samepage \clearpage $\sigma_i$
}


\newpage

{\samepage \clearpage $475 \pm 9\ \mu$
}


\newpage

{\samepage \clearpage $2.19\pm0.14$
}


\newpage

{\samepage \clearpage $s_0 = 1.31\pm 0.11$
}


\newpage

{\samepage \clearpage $l_0 = 2.331\pm0.044$
}


\newpage

{\samepage \clearpage $305.6\pm5.8$
}


\newpage

{\samepage \clearpage $460\ \mu$
}


\newpage

{\samepage \clearpage $s_0 = 0.96\pm 0.05$
}


\newpage

{\samepage \clearpage $<\beta\gamma> = 25.44\pm0.01$
}


\newpage

{\samepage \clearpage \[
  \tau_\tau = 288 \pm 18 \pm 4\ \mbox{\rm fs}.
\]
}


\stepcounter{subsection}
\newpage

{\samepage \clearpage % latex2html id marker 1747
\[
  \ln L = \sum_{i=1}^{\rm N} Y_i \ln f_i(\theta),
\]
}


\newpage

{\samepage \clearpage $Y_i$
}


\newpage

{\samepage \clearpage ${\rm i}^{th}$
}


\newpage

{\samepage \clearpage % latex2html id marker 1759
$f_i(\theta)$
}


\newpage

{\samepage \clearpage ${\rm i}^{th}$
}


\newpage

{\samepage \clearpage $\tau_0 = 305$
}


\newpage

{\samepage \clearpage $t$
}


\newpage

{\samepage \clearpage $\tau$
}


\newpage

{\samepage \clearpage \[
  weight = {\tau_0\over\tau}\ {{\exp(-t/\tau)}\over{\exp(-t/\tau_0)}}\cdot
\]
}


\newpage

{\samepage \clearpage $0.7\tau_0 < \tau < 1.3\tau_0$
}


\newpage

{\samepage \clearpage \[
  \tau_\tau = 302 \pm 12\ \mbox{\rm fs}.
\]
}


\newpage

{\samepage \clearpage $10\ \mu$
}


\newpage

{\samepage \clearpage \[
  \tau_\tau = 302 \pm 12 \pm\ 5\ \mbox{\rm fs}.
\]
}


\stepcounter{subsection}
\newpage

{\samepage \clearpage $<d_+ - d_->$
}


\newpage

{\samepage \clearpage % latex2html id marker 1785
$\sin\theta\ \delta\phi$
}


\newpage

{\samepage \clearpage \[
  weight = {\tau_0^2\over\tau^2}\ {{\exp\left(-{(t_1+t_2)\over\tau}\right)}
  \over{\exp\left(-{(t_1+t_2)\over\tau_0}\right)}},
\]
}


\newpage

{\samepage \clearpage $\tau_0$
}


\newpage

{\samepage \clearpage $t_1$
}


\newpage

{\samepage \clearpage $t_2$
}


\newpage

{\samepage \clearpage \[
  \tau_\tau = 298\pm 13\ \mbox{\rm fs}.
\]
}


\newpage

{\samepage \clearpage $\cos\Theta_{miss}$
}


\newpage

{\samepage \clearpage \[
  \tau_\tau = 298\pm 13\ \pm 7\ \mbox{\rm fs},
\]
}


\stepcounter{section}
\newpage

{\samepage \clearpage $ \tau_\tau = 300\pm 11(stat.)\pm 5(syst.)\ \mbox{\rm fs}$
}


\newpage

{\samepage \clearpage \[
  \tau_\tau = 297\pm 9(stat.)\pm 5(syst.)\ \mbox{\rm fs}.
\]
}


\newpage

{\samepage \clearpage $R_b$
}


\newpage

{\samepage \clearpage ${\cal O}(\alpha)$
}


\newpage

{\samepage \clearpage \begin{table}% latex2html id marker 435
\begin{center}
\begin{tabular}{lccccc}  \hline\hline
    Process    & & & \multicolumn{3}{c}{Background fraction (\%)}\\ 
               & & &     DL      &   IP        & IPD             \\  \hline
    Multihadron& & & $0.3\pm0.1$ &             &                 \\ 
    Muon-pair  & & &             & $0.9 \pm0.1 $ & $0.2 \pm0.1 $ \\ 
    Bhabha     & & &             & $0.6 \pm0.1 $ & $0.1 \pm0.1 $ \\ 
    Two-photon & & &             & $1.0 \pm0.3 $ & $0.5 \pm0.3 $ \\  \hline
    Total      & & & $0.3\pm0.1$ & $2.5 \pm0.3 $ & $0.8 \pm0.3 $ \\ 
\hline\hline
\end{tabular}
\end{center}
\caption{\label{tblone}Background fractions
(in percent) in the final event samples used in the DL, IP, and IPD analyses.}
\end{table}
}


\newpage

{\samepage \clearpage \begin{table}% latex2html id marker 446
\begin{center}
\begin{tabular}{lc}  \hline\hline
  Systematic effects   & Error (\%) \\  \hline
  Decay length resolution              & 0.8  \\ 
  Track and vertex quality cuts        & 1.0  \\ 
  Backgrounds                          & 0.3  \\ 
  Initial and final state radiation    & 0.3  \\ 
  Beam energy and energy spread        & 0.3  \\  \hline
  Total                                & 1.4  \\  \hline\hline
\end{tabular}
\end{center}
\caption{\label{tbltwo}Systematic errors for decay length method.}
\end{table}
}


\newpage

{\samepage \clearpage \begin{table}% latex2html id marker 454
\begin{center}
\begin{tabular}{lc}  \hline\hline
  Systematic effects                   & Error (\%) \\  \hline
  Binning                              & 0.3  \\ 
  Monte Carlo statistics               & 0.9  \\ 
  Track quality cuts                   & 1.0  \\ 
  Backgrounds                          & 0.1  \\ 
  Beam position                        & 0.4  \\ 
  Tau branching ratios                 & 0.2  \\ 
  Initial and final state radiation    & 0.3  \\ 
  Beam energy and energy spread        & 0.3  \\        \hline
  Total                                & 1.5        \\  \hline\hline
\end{tabular}
\end{center}
\caption{\label{tblthr}Systematic errors for the impact parameter method.}
\end{table}
}


\newpage

{\samepage \clearpage \begin{table}% latex2html id marker 462
\begin{center}
\begin{tabular}{lc}  \hline\hline
  Systematic effects     & Error (\%) \\  \hline
  Binning                & 1.6        \\ 
  Fit range              & 1.0        \\ 
  Monte Carlo statistics & 0.7        \\ 
  Event selection        & 0.9        \\ 
  Track quality cuts     & 0.5        \\ 
  Tau branching ratios                 & 0.2  \\ 
  Initial and final state radiation    & 0.3  \\ 
  Beam energy and energy spread        & 0.3  \\        \hline
  Total                  & 2.3        \\  \hline\hline
\end{tabular}
\end{center}
\caption{\label{tblfou}Systematic errors for the impact parameter difference 
method.}
\end{table}
}


\newpage

{\samepage \clearpage \begin{figure}% latex2html id marker 470
[t]
\epsfysize=6.0in
\epsfbox{sldtauprdfig1.eps}
\caption{\label{dl_dtmc}Distributions from the 1-3 sample:
(a) three-prong momentum, (b) three-prong invariant mass, (c) largest
opening angle between a track and the three-prong momentum direction, and
(d) three-prong vertex fit probability. In (d) the inset shows an
expanded view of the lowest 0.4\% in probability.}
\end{figure}
}


\newpage

{\samepage \clearpage \begin{figure}% latex2html id marker 474
[t]
\epsfysize=6.0in
\epsfbox{sldtauprdfig2.eps}
\caption{\label{ipd_dtmc}Distributions from the 1-1 sample:
(a) track momentum, (b) track fit $\chi^2$/d.o.f., (c) two-prong invariant
mass, and (d) two-prong acolinearity.}
\end{figure}
}


\newpage

{\samepage \clearpage \begin{figure}% latex2html id marker 478
[t]
\epsfysize=4.0in
\epsfbox{sldtauprdfig3.eps}
\caption{\label{fig3}Drawings illustrating the three measurement
techniques used: (a) decay length, (b) impact parameter, and (c) impact
parameter difference. The x and y axes lie in the transverse plane.}
\end{figure}
}


\newpage

{\samepage \clearpage \begin{figure}% latex2html id marker 482
[t]
\epsfxsize=6.5in
\epsfbox{sldtauprdfig4.eps}
\caption{\label{dl_lif}Three-prong decay length distribution
for the final event samples in (a) the data and (b) the Monte Carlo. The solid
curve in the two figures corresponds to the maximum likelihood fit described
in the text.}
\end{figure}
}


\newpage

{\samepage \clearpage \begin{figure}% latex2html id marker 486
[t]
\epsfysize=4.0in
\epsfbox{sldtauprdfig5.eps}
\caption{\label{impact}Impact parameter distribution for
data (data points) and Monte Carlo (histogram).}
\end{figure}
}


\newpage

{\samepage \clearpage \begin{figure}% latex2html id marker 490
[t]
\epsfxsize=6.5in
\epsfbox{sldtauprdfig6.eps}
\caption{\label{ipd_ipdiff}(a) Impact parameter difference and
(b) acoplanarity distributions for the final event sample in the IPD method.
The dots represent the data and the histograms the Monte Carlo.}
\end{figure}
}


\newpage

{\samepage \clearpage \begin{figure}% latex2html id marker 494
[t]
\epsfxsize=6.7in
\epsfbox{sldtauprdfig7.eps}
\caption{\label{ipd_lif}Impact parameter difference vs. acoplanarity
scatter plot for 1-1 events in the data. The points outside the
parallelogram in (a) are excluded from the fit. The distribution in (b)
represents a profile histogram of the scatter plot for all points used in the
maximum likelihood fit.}
\end{figure}
}


\newpage

{\samepage \clearpage \begin{figure}% latex2html id marker 498
[t]
\epsfxsize=6.0in
\epsfbox{sldtauprdfig8.eps}
\caption{\label{muwab}Impact parameter difference vs. acoplanarity
scatter plots for (a) muon-pair and (b) wide-angle Bhabha events
from the data.}
\end{figure}
}



\end{document}