\begin{table} \centering \caption[]{ Beam requirements for new muon experiments. Given are the necessary sign of charge $q_{\mu}$ and the minimum of the total muon number $\int I_{\mu}dt$ above which significant progress can be expected in the physical interpretation of the experiments. Measurements which require pulsed beams are sensitive to the muon suppression $I_0/I_{m}$ between pulses of length $\delta T$ and separation $\Delta T$. Most experiments require energies up to 4 MeV corresponding to 29 MeV/c momentum. Thin targets, respectively storage ring acceptances, demand rather small momentum bites $\Delta p_{\mu}/p_{\mu}$ \cite{Aysto_01}. \label{tab:LE_beams} } { % \begin{tabular}[hbt]{|c|c|c|c|c|c|c|c|} % \hline % &&&&&&&\\ % Experiment & $q_{\mu}$ &$\int I_{\mu}dt$&$I_0/I_{\mu}$&$\delta T$&$\Delta T$&$E_{\mu}$&$\Delta p_{\mu}/p_{\mu}$\\ & & & & [ns] & [ns] & [MeV] & [\%] \\ % \hline % $\mu^-N \rightarrow e^-N$ &-- &$10^{19}$&$<10^{-9}$&$\leq 100$&$\geq 1000$ &$<20$ &1...5 \\ $\mu \rightarrow e \gamma$ &+ &$10^{16}$& n/a &continuous &continuous &1...4 &1...5 \\ $\mu \rightarrow eee$ &+ &$10^{15}$& n/a &continuous &continuous &1...4 &1...5 \\ $\mu^+e^- \rightarrow \mu^-e^+$&+ &$10^{16}$&$<10^{-4}$&$<1000$s &$\geq 20000$ &1...4 &1...2 \\ % \hline % $\tau_{\mu}$ &+ &$10^{13}$&$<10^{-4}$&$<100$ &$\geq 20000$ &4 &1...10 \\ $non (V-A)$ &$\pm$&$10^{13}$&$n/a$ &continuous &continuous &4 &1...5 \\ % \hline % $g_{\mu}-2$ &$\pm$&$10^{15}$&$<10^{-7}$&$\leq 50$ &$\geq 10^6$ &3100 &$10^{-4}$ \\ $edm_{\mu}$ &$\pm$&$10^{16}$&$<10^{-6}$&$\leq 50$ &$\geq 10^6$ &$\leq$1000&$\leq 10^{-5}$\\ % \hline % $M_{HFS}$ &+ &$10^{15}$&$<10^{-4}$&$\leq 1000$ &$\geq 20000$ &4 &1...3 \\ $M_{1s2s}$ &+ &$10^{14}$&$<10^{-3}$&$\leq 500$ &$\geq 10^6$ &1...4 &1...2 \\ % \hline % $\mu^- atoms$ &-- &$10^{14}$&$<10^{-3}$&$\leq 500$&$\geq 20000$ &1...4 &1...5 \\ % \hline % $condensed$ $matter$ &$\pm$&$10^{14}$&$<10^{-3}$&$< 50$ &$\geq 20000$ &1...4 &1...5 \\ $(incl.$$bio$ $sciences)$ &&&&&&&\\ % \hline % KJ 14 Nov 2000 \end{tabular} } \end{table} %