Effects of neutrino oscillation on supernova neutrino: inverted mass hierarchy

We study the effects of neutrino oscillation on supernova neutrino in the case of the inverted mass hierarchy (m(3) much less than m(1) < m(2)). This is an extended study of our previous study [1] where all analyses are performed with normal mass hierarchy (m(1) < m(2) much less than m(3))Numerical analysis using a realistic supernova and presupernova model allow us to discuss quantitatively a possibility to probe neutrino oscillation parameters. We show that we can break partly the degeneracy of the solar neutrino problem (LMA or SMA) and probe the magnitude of theta(13) to some extent by the ratios of high-energy events and low-energy events at SuperKamiokande and SNO and the presence of the Earth effects. Further, if the magnitude Of theta(13) is known roughly, we can identify the mass hierarchy.