is plotted as a function of the neutrino energy () and the zenith angle (). The oscillation probability is shown by the color. The large oscillation probability in the 5- to 10-GeV energy and for is due to with the matter effects. Below about 300 MeV, the oscillation effects due to solar terms with the matter effects are seen. Between these two energy regions, there are effects due to the interference of these two effects (CP phase).
