\contentsline {section}{\numberline {1}Introduction}{3}
\contentsline {section}{\numberline {2}Beam properties}{3}
\contentsline {subsection}{\numberline {2.1}Interaction rates}{4}
\contentsline {subsection}{\numberline {2.2}Tau neutrino interactions}{9}
\contentsline {subsection}{\numberline {2.3}Systematic uncertainties on the muon beam and neutrino flux}{9}
\contentsline {subsection}{\numberline {2.4}Event distributions at a near site}{10}
\contentsline {section}{\numberline {3}Oscillation physics}{14}
\contentsline {subsection}{\numberline {3.1}Theoretical framework}{14}
\contentsline {subsection}{\numberline {3.2}Scenarios}{14}
\contentsline {subsubsection}{\numberline {3.2.1}Scenarios I A1,A2 and A3}{14}
\contentsline {subsubsection}{\numberline {3.2.2}Scenarios I B and C}{17}
\contentsline {subsubsection}{\numberline {3.2.3}Three Active plus One Sterile Neutrino Scenarios}{18}
\contentsline {subsection}{\numberline {3.3}Where will we be in 5-10 years ?}{18}
\contentsline {subsection}{\numberline {3.4}The neutrino factory oscillation physics program}{21}
\contentsline {subsection}{\numberline {3.5}Detector considerations}{23}
\contentsline {subsubsection}{\numberline {3.5.1}Muon identification and measurement}{25}
\contentsline {subsubsection}{\numberline {3.5.2}$\tau $--lepton identification and measurement}{27}
\contentsline {subsubsection}{\numberline {3.5.3}A Liquid Argon neutrino detector}{29}
\contentsline {subsubsection}{\numberline {3.5.4}A magnetized Steel/Scintillator neutrino detector}{30}
\contentsline {subsubsection}{\numberline {3.5.5}A Water Cerenkov detector}{32}
\contentsline {subsubsection}{\numberline {3.5.6}Specialized $\tau $--lepton detectors}{36}
\contentsline {subsubsection}{\numberline {3.5.7}Detector summary}{37}
\contentsline {subsection}{\numberline {3.6}Oscillation measurements}{39}
\contentsline {subsubsection}{\numberline {3.6.1}Observation of $\nu _e \rightarrow \nu _\mu $ oscillations and the pattern of neutrino masses}{39}
\contentsline {subsubsection}{\numberline {3.6.2}Observation of $\nu _e \rightarrow \nu _\tau $ oscillations}{43}
\contentsline {subsubsection}{\numberline {3.6.3}Measurement of $\nu _\mu \rightarrow \nu _\tau $ oscillations}{44}
\contentsline {subsubsection}{\numberline {3.6.4}Determination of $\mathop {\mathgroup \symoperators sin}\nolimits ^2 2\theta _{13}$, $\mathop {\mathgroup \symoperators sin}\nolimits ^2 2\theta _{23}$, and $\delta m^2_{32}$}{45}
\contentsline {subsubsection}{\numberline {3.6.5}Search for CP violation}{48}
\contentsline {subsection}{\numberline {3.7}Summary}{49}