| Fermilab experiment E872 used an emulsion detector in a tau-neutrino enriched neutrino beam to record neutrino interactions including those of the tau-neutrino. In a data set of 203 interactions located in the emulsion, four events have a signature that fulfilled tau-neutrino interaction selection criteria. The expected number of background events due to random association, charm decay and secondary interactions is 0.41 ± 0.04. A Baysean analysis of each signal event shows the probability of all four events being due to background sources and there are no tau-neutrino interaction events in the signal is 1.4 × 10−4. This is the first observation of tau-neutrino charged-current interactions.; This thesis presents the methods and results of E872. |
