Prism Plot: A New Analysis of Multibody Final States

We present a new technique for analyzing multibody states. This analysis makes possible the selection of samples of events that contain only resonances, particle correlations, or phase space. A unique feature of this analysis is that every event in the data is assigned to a particular sample. The three-body final state ${\pi }^{+}+p\to p+{\pi }^{+}+{\pi }^0$ is analyzed as an example.