Search for indirect signal of WIMPs in super-kamiokande

We present the result of indirect search for Weakly Interacting Massive Particles(WIMPs). We used Super-Kamiokande detector for the search using neutrino-induced upward going muons. This search targets to detect the neutrino signals from WIMPs annihilation in the sun and the earth. This time, data set from SKI to SKIII(2828.3 days) are used for analysis, and looked for excess of neutrino signal from the sun as compared with expected atmospheric neutrino background. From the excess search, no significant excess was observed. Then, we calculate the flux limit of upward going muon in various angular cones around the Sun. We know the relation between WIMP mass and the cone half angle from the Sun. We calculated window angle which contain 90% of signal from WIMP annihilation in the Sun for several WIMP neutralino mass using this relation. And we can get 90% upper poissonian limit using all categories of upward going muon event for each WIMP mass with considering detection efficiency. In this analysis, improve the previous limit by ~1.4 times. It's reasonable considering the increasing of statistics. We are almost approaching the expected flux region which is calculated from DARKSUSY simulation at all WIMP mass range.