Publications [#248872] of Christopher Walter

Papers Published
  1. Desai, S; Ashie, Y; Fukuda, S; Fukuda, Y; Ishihara, K; Itow, Y; Koshio, Y; Minamino, A; Miura, M; Moriyama, S; Nakahata, M; Namba, T; Nambu, R; Obayashi, Y; Sakurai, N; Shiozawa, M; Suzuki, Y; Takeuchi, H; Takeuchi, Y; Yamada, S; Ishitsuka, M; Kajita, T; Kaneyuki, K; Nakayama, S; Okada, A; Ooyabu, T; Saji, C; Earl, M; Kearns, E; Stone, JL; Sulak, LR; Walter, CW; Wang, W; Goldhaber, M; Barszczak, T; Casper, D; Cravens, JP; Gajewski, W; Kropp, WR; Mine, S; Liu, DW; Smy, MB; Sobel, HW; Sterner, CW et al., Search for dark matter WIMPs using upward through-going muons in Super-Kamiokande, Physical Review D: Particles, Fields, Gravitation and Cosmology, vol. 70 no. 8 (2004), pp. 083523-1-083523-11 [pdf], [doi] .

    Abstract:
    We present the results of indirect searches for Weakly Interacting Massive Particles (WIMPs), with 1679.6 live days of data from the Super-Kamiokande detector using neutrino-induced upward through-going muons. The search is performed by looking for an excess of high energy muon neutrinos from WIMP annihilations in the Sun, the core of the Earth, and the Galactic Center, as compared to the number expected from the atmospheric neutrino background. No statistically significant excess was seen. We calculate the flux limits in various angular cones around each of the above celestial objects. We obtain conservative model-independent upper limits on the WIMP-nucleon cross section as a function of WIMP mass, and compare these results with the corresponding results from direct dark matter detection experiments.