AN INDIRECT SEARCH FOR WEAKLY INTERACTING MASSIVE PARTICLES IN THE SUN USING 3109.6 DAYS OF UPWARD-GOING MUONS IN SUPER-KAMIOKANDE

Abstract

We present the result of an indirect search for high energy neutrinos from\nWIMP annihilation in the Sun using upward-going muon (upmu) events at\nSuper-Kamiokande. Datasets from SKI-SKIII (3109.6 days) were used for the\nanalysis. We looked for an excess of neutrino signal from the Sun as compared\nwith the expected atmospheric neutrino background in three upmu categories:\nstopping, non-showering, and showering. No significant excess was observed. The\n90% C.L. upper limits of upward-going muon flux induced by WIMPs of 100\nGeV/c$^2$ were 6.4$\\times10^{-15}$ cm$^{-2}$ sec$^{-1}$ and 4.0$\\times10^{-15}$\ncm$^{-2}$ sec$^{-1}$ for the soft and hard annihilation channels, respectively.\nThese limits correspond to upper limits of 4.5$\\times10^{-39}$ cm$^{-2}$ and\n2.7$\\times10^{-40}$ cm$^{-2}$ for spin-dependent WIMP-nucleon scattering cross\nsections in the soft and hard annihilation channels, respectively.\n