Christopher Walter

Christopher Walter

Professor of Physics

Office Location: 
Box 90305 Physics Department, Duke University, Durham, NC 27710
Front Office Address: 
Box 90305, Durham, NC 27708-0305
Phone: 
(919) 660-2535

Overview

I am a professor in the physics department studying particle physics and cosmology. I try to understand both the nature of the ghostly particles called neutrinos in giant detectors deep underground, and why the expansion of the universe is accelerating using telescopes on top of mountains.   My background and training is originally in particle physics and I was part of the team that showed the sub-atomic particles called neutrinos have mass.  The leader of our team, T. Kajita was co-awarded the 2015 Nobel Prize in Physics for this discovery which cited the work of our collaboration.  Recently, I started an effort in observational cosmology at Duke, joining the Large Synoptic Survey Telescope (LSST) project, a giant  telescope that will be located in Chile designed to make a 10 year, three dimensional survey of the entire visible sky.  In LSST, we will focus on examining billions of galaxies, along with supernovae and other astronomical probes to try to determine the nature of the mysterious “Dark Energy” which is unaccountably causing the universe to pushed apart at a faster and faster rate.

Education & Training

  • Ph.D., California Institute of Technology 1997

  • M.S., California Institute of Technology 1991

  • B.A., University of California at Santa Cruz 1989

Guillian, G, Hosaka, J, Ishihara, K, Kameda, J, Koshio, Y, Minamino, A, Mitsuda, C, Miura, M, Moriyama, S, Nakahata, M, Namba, T, Obayashi, Y, Ogawa, H, Shiozawa, M, Suzuki, Y, Takeda, A, Takeuchi, Y, Yamada, S, Higuchi, I, Ishitsuka, M, Kajita, T, Kaneyuki, K, Mitsuka, G, Nakayama, S, Nishino, H, Okada, A, Okumura, K, Saji, C, Takenaga, Y, Desai, S, Kearns, E, Stone, JL, Sulak, LR, Wang, W, Goldhaber, M, Casper, D, Gajewski, W, Griskevich, J, Kropp, WR, Liu, DW, Mine, S, Smy, MB, Sobel, HW, Vagins, MR, Ganezer, KS, Hill, J, Keig, WE, Scholberg, K, Walter, CW, Ellsworth, RW, Tasaka, S, Kibayashi, A, Learned, JG, Matsuno, S, Messier, MD, Hayato, Y, Ichikawa, AK, Ishida, T, Ishii, T, Iwashita, T, Kobayashi, T, Nakadaira, T, Nakamura, K, Nitta, K, Oyama, Y, Totsuka, Y, Suzuki, AT, Hasegawa, M, Kato, I, Maesaka, H, Nakaya, T, Nishikawa, K, Sato, H, Yamamoto, S, Yokoyama, M, Haines, TJ, Dazeley, S, Hatakeyama, S, Svoboda, R, Blaufuss, E, Goodman, JA, Sullivan, GW, Turcan, D, Habig, A, Fukuda, Y, Itow, Y, Sakuda, M, Yoshida, M, Kim, SB, Yoo, J, Okazawa, H, Ishizuka, T, Jung, CK, Kato, T, Kobayashi, K, Malek, M, Mauger, C, McGrew, C, Sharkey, E, Yanagisawa, C, Gando, Y, Hasegawa, T, Inoue, K, Shirai, J, Suzuki, A, Nishijima, K, Ishino, H, Watanabe, Y, Koshiba, M, Kielczewska, D, Berns, HG, Gran, R, Shiraishi, KK, Stachyra, AL, Washburn, K, Wilkes, RJ, and Munakata, K. "Observation of the anisotropy of 10 TeV primary cosmic ray nuclei flux with the Super-Kamiokande-I detector." Physical Review D 75.6 (March 2007). Full Text

Durand, G, Cadelis, L, Minier, V, Veyssière, C, Walter, C, Pierre, A, Agabi, A, Fossat, E, and Jeanneaux, F. "GIVRE: A Protection Against Frost Deposit on Polar Instruments." EAS Publications Series 25 (2007): 77-80. Full Text

Abe, K, Hosaka, J, Iida, T, Ishihara, K, Kameda, J, Koshio, Y, Minamino, A, Mitsuda, C, Miura, M, Moriyama, S, Nakahata, M, Obayashi, Y, Ogawa, H, Shiozawa, M, Suzuki, Y, Takeda, A, Takeuchi, Y, Higuchi, I, Ishihara, C, Ishitsuka, M, Kajita, T, Kaneyuki, K, Mitsuka, G, Nakayama, S, Nishino, H, Okada, A, Okumura, K, Saji, C, Takenaga, Y, Clark, S, Desai, S, Dufour, F, Kearns, E, Likhoded, S, Litos, M, Raaf, JL, Stone, JL, Sulak, LR, Wang, W, Goldhaber, M, Casper, D, Cravens, JP, Dunmore, J, Kropp, WR, Liu, DW, Mine, S, Regis, C, Smy, MB, Sobel, HW, Vagins, MR, Ganezer, KS, Hill, J, Keig, WE, Jang, JS, Kim, JY, Lim, IT, Scholberg, K, Tanimoto, N, Walter, CW, Wendell, R, Ellsworth, RW, Tasaka, S, Guillian, G, Learned, JG, Matsuno, S, Messier, MD, Hayato, Y, Ichikawa, AK, Ishida, T, Ishii, T, Iwashita, T, Kobayashi, T, Nakadaira, T, Nakamura, K, Nitta, K, Oyama, Y, Totsuka, Y, Suzuki, AT, Hasegawa, M, Hiraide, K, Kato, I, Maesaka, H, Nakaya, T, Nishikawa, K, Sasaki, T, Sato, H, Yamamoto, S, Yokoyama, M, Haines, TJ, Dazeley, S, Hatakeyama, S, Svoboda, R, Sullivan, GW, Turcan, D, Swanson, M, Clough, A, Habig, A, Fukuda, Y, Sato, T, Itow, Y, Koike, T, Jung, CK, Kato, T, Kobayashi, K, Malek, M, McGrew, C, Sarrat, A, Terri, R, Yanagisawa, C, Tamura, N, Sakuda, M, Sugihara, M, Kuno, Y, Yoshida, M, Kim, SB, Yang, BS, Yoo, J, Ishizuka, T, Okazawa, H, Choi, Y, Seo, HK, Gando, Y, Hasegawa, T, Inoue, K, Ishii, H, Nishijima, K, Ishino, H, Watanabe, Y, Koshiba, M, Kielczewska, D, Zalipska, J, Berns, H, Gran, R, Shiraishi, KK, Stachyra, A, Thrane, E, Washburn, K, and Wilkes, RJ. "High‐Energy Neutrino Astronomy Using Upward‐going Muons in Super‐Kamiokande I." The Astrophysical Journal 652.1 (November 20, 2006): 198-205. Full Text

Swanson, MEC, Abe, K, Hosaka, J, Iida, T, Ishihara, K, Kameda, J, Koshio, Y, Minamino, A, Mitsuda, C, Miura, M, Moriyama, S, Nakahata, M, Obayashi, Y, Ogawa, H, Shiozawa, M, Suzuki, Y, Takeda, A, Takeuchi, Y, Ueshima, K, Higuchi, I, Ishihara, C, Ishitsuka, M, Kajita, T, Kaneyuki, K, Mitsuka, G, Nakayama, S, Nishino, H, Okada, A, Okumura, K, Saji, C, Takenaga, Y, Clark, S, Desai, S, Dufour, F, Kearns, E, Likhoded, S, Litos, M, Raaf, JL, Stone, JL, Sulak, LR, Wang, W, Goldhaber, M, Casper, D, Cravens, JP, Dunmore, J, Kropp, WR, Liu, DW, Mine, S, Regis, C, Smy, MB, Sobel, HW, Vagins, MR, Ganezer, KS, Hill, JE, Keig, WE, Jang, JS, Kim, JY, Lim, IT, Scholberg, K, Tanimoto, N, Walter, CW, Wendell, R, Ellsworth, RW, Tasaka, S, Guillian, G, Learned, JG, Matsuno, S, Messier, MD, Hayato, Y, Ichikawa, AK, Ishida, T, Ishii, T, Iwashita, T, Kobayashi, T, Nakadaira, T, Nakamura, K, Nitta, K, Oyama, Y, Totsuka, Y, Suzuki, AT, Hasegawa, M, Hiraide, K, Kato, I, Maesaka, H, Nakaya, T, Nishikawa, K, Sasaki, T, Sato, H, Yamamoto, S, Yokoyama, M, Haines, TJ, Dazeley, S, Hatakeyama, S, Svoboda, R, Sullivan, GW, Turcan, D, Cooley, J, Mahn, KBM, Habig, A, Fukuda, Y, Sato, T, Itow, Y, Koike, T, Jung, CK, Kato, T, Kobayashi, K, Malek, M, McGrew, C, Sarrat, A, Terri, R, Yanagisawa, C, Tamura, N, Sakuda, M, Sugihara, M, Kuno, Y, Yoshida, M, Kim, SB, Yang, BS, Yoo, J, Ishizuka, T, Okazawa, H, Choi, Y, Seo, HK, Gando, Y, Hasegawa, T, Inoue, K, Ishii, H, Nishijima, K, Ishino, H, Watanabe, Y, Koshiba, M, Kielczewska, D, Zalipska, J, Berns, HG, Gran, R, Shiraishi, KK, Stachyra, A, Thrane, E, Washburn, K, and Wilkes, RJ. "Search for Diffuse Astrophysical Neutrino Flux Using Ultra–High‐Energy Upward‐going Muons in Super‐Kamiokande I." The Astrophysical Journal 652.1 (November 20, 2006): 206-215. Full Text

Abe, K, Hayato, Y, Iida, T, Ishihara, K, Kameda, J, Koshio, Y, Minamino, A, Mitsuda, C, Miura, M, Moriyama, S, Nakahata, M, Obayashi, Y, Ogawa, H, Shiozawa, M, Suzuki, Y, Takeda, A, Takeuchi, Y, Ueshima, K, Higuchi, I, Ishihara, C, Ishitsuka, M, Kajita, T, Kaneyuki, K, Mitsuka, G, Nakayama, S, Nishino, H, Okumura, K, Saji, C, Takenaga, Y, Totsuka, Y, Clark, S, Desai, S, Dufour, F, Kearns, E, Likhoded, S, Litos, M, Raaf, JL, Stone, JL, Sulak, LR, Wang, W, Goldhaber, M, Casper, D, Cravens, JP, Kropp, WR, Liu, DW, Mine, S, Regis, C, Smy, MB, Sobel, HW, Vagins, MR, Ganezer, KS, Hill, JE, Keig, WE, Jang, JS, Kim, JY, Lim, IT, Scholberg, K, Tanimoto, N, Walter, CW, Wendell, R, Ellsworth, RW, Tasaka, S, Guillian, E, Learned, JG, Matsuno, S, Messier, MD, Ichikawa, AK, Ishida, T, Ishii, T, Iwashita, T, Kobayashi, T, Nakadaira, T, Nakamura, K, Nitta, K, Oyama, Y, Suzuki, AT, Hasegawa, M, Kato, I, Maesaka, H, Nakaya, T, Nishikawa, K, Sasaki, T, Sato, H, Yamamoto, S, Yokoyama, M, Haines, TJ, Dazeley, S, Hatakeyama, S, Svoboda, R, Sullivan, GW, Habig, A, Gran, R, Fukuda, Y, Sato, T, Itow, Y, Koike, T, Jung, CK, Kato, T, Kobayashi, K, Malek, M, McGrew, C, Sarrat, A, Terri, R, Yanagisawa, C, Tamura, N, Sakuda, M, Sugihara, M, Kuno, Y, Yoshida, M, Kim, SB, Yoo, J, Ishizuka, T, Okazawa, H, Choi, Y, Seo, HK, Gando, Y, Hasegawa, T, Inoue, K, Ishii, H, Nishijima, K, Ishino, H, Watanabe, Y, Koshiba, M, Kielczewska, D, Zalipska, J, Berns, HG, Shiraishi, KK, Washburn, K, Wilkes, RJ, and Super-Kamiokande Collaboration, . "Measurement of atmospheric neutrino flux consistent with tau neutrino appearance." Physical Review Letters 97.17 (October 23, 2006): 171801-null. Full Text

Ahn, MH, Aliu, E, Andringa, S, Aoki, S, Aoyama, Y, Argyriades, J, Asakura, K, Ashie, R, Berghaus, F, Berns, HG, Bhang, H, Blondel, A, Borghi, S, Bouchez, J, Boyd, SC, Burguet-Castell, J, Casper, D, Catala, J, Cavata, C, Cervera, A, Chen, SM, Cho, KO, Choi, JH, Dore, U, Echigo, S, Espinal, X, Fechner, M, Fernandez, E, Fujii, K, Fujii, Y, Fukuda, S, Fukuda, Y, Gomez-Cadenas, J, Gran, R, Hara, T, Hasegawa, M, Hasegawa, T, Hayashi, K, Hayato, Y, Helmer, RL, Higuchi, I, Hill, J, Hiraide, K, Hirose, E, Hosaka, J, Ichikawa, AK, Ieiri, M, Iinuma, M, Ikeda, A, Inagaki, T, Ishida, T, Ishihara, K, Ishii, H, Ishii, T, Ishino, H, Ishitsuka, M, Itow, Y, Iwashita, T, Jang, HI, Jang, JS, Jeon, EJ, Jeong, IS, Joo, KK, Jover, G, Jung, CK, Kajita, T, Kameda, J, Kaneyuki, K, Kang, BH, Kato, I, Kato, Y, Kearns, E, Kerr, D, Kim, CO, Khabibullin, M, Khotjantsev, A, Kielczewska, D, Kim, BJ, Kim, HI, Kim, JH, Kim, JY, Kim, SB, Kitamura, M, Kitching, P, Kobayashi, K, Kobayashi, T, Kohama, M, Konaka, A, Koshio, Y, Kropp, W, Kubota, J, Kudenko, Y, Kume, G, Kuno, Y, Kurimoto, Y, Kutter, T, Learned, J, Likhoded, S, Lim, IT, Lim, SH, Loverre, PF, Ludovici, L, Maesaka, H, Mallet, J, Mariani, C, Martens, K, Maruyama, T, Matsuno, S, Matveev, V, Mauger, C, McConnel Mahn, KB, McGrew, C, Mikheyev, S, Minakawa, M, Minamino, A, Mine, S, Mineev, O, Mitsuda, C, Mitsuka, G, Miura, M, Moriguchi, Y, Morita, T, Moriyama, S, Nakadaira, T, Nakahata, M, Nakamura, K, Nakano, I, Nakata, F, Nakaya, T, Nakayama, S, Namba, T, Nambu, R, Nawang, S, Nishikawa, K, Nishino, H, Nishiyama, S, Nitta, K, Noda, S, Noumi, H, Nova, F, Novella, P, Obayashi, Y, Okada, A, Okumura, K, Okumura, M, Onchi, M, T., O, Oser, SM, Otaki, T, Oyama, Y, Pac, MY, Park, H, Pierre, F, Rodriguez, A, Saji, C, Sakai, A, Sakuda, M, Sakurai, N, Sanchez, F, Sarrat, A, Sasaki, T, Sato, H, Sato, K, Scholberg, K, Schroeter, R, Sekiguchi, M, Seo, E, Sharkey, E, Shima, A, Shiozawa, M, Shiraishi, K, Sitjes, G, Smy, M, So, H, Sobel, H, Sorel, M, Stone, J, Sulak, L, Suga, Y, Suzuki, A, Suzuki, Y, Tada, M, Takahashi, T, Takasaki, M, Takatsuki, M, Takenaga, Y, Takenaka, K, Takeuchi, H, Takeuchi, Y, Taki, K, Takubo, Y, Tamura, N, Tanaka, H, Tanaka, K, Tanaka, M, Tanaka, Y, Tashiro, K, Terri, R, T’Jampens, S, Tornero-Lopez, A, Toshito, T, Totsuka, Y, Ueda, S, Vagins, M, Whitehead, L, Walter, CW, Wang, W, Wilkes, RJ, Yamada, S, Yamada, Y, Yamamoto, S, Yamanoi, Y, Yanagisawa, C, Yershov, N, Yokoyama, H, Yokoyama, M, Yoo, J, Yoshida, M, and Zalipska, J. "Measurement of neutrino oscillation by the K2K experiment." Physical Review D 74.7 (October 2006). Full Text

Hosaka, J, Ishihara, K, Kameda, J, Koshio, Y, Minamino, A, Mitsuda, C, Miura, M, Moriyama, S, Nakahata, M, Namba, T, Obayashi, Y, Shiozawa, M, Suzuki, Y, Takeda, A, Takeuchi, Y, Yamada, S, Higuchi, I, Ishitsuka, M, Kajita, T, Kaneyuki, K, Mitsuka, G, Nakayama, S, Nishino, H, Okada, A, Okumura, K, Saji, C, Takenaga, Y, Clark, S, Desai, S, Kearns, E, Likhoded, S, Stone, JL, Sulak, LR, Wang, W, Goldhaber, M, Casper, D, Cravens, JP, Kropp, WR, Liu, DW, Mine, S, Regis, C, Smy, MB, Sobel, HW, Sterner, CW, Vagins, MR, Ganezer, KS, Hill, JE, Keig, WE, Jang, JS, Kim, JY, Lim, IT, Scholberg, K, Walter, CW, Wendell, R, Ellsworth, RW, Tasaka, S, Guillian, E, Kibayashi, A, Learned, JG, Matsuno, S, Messier, MD, Hayato, Y, Ichikawa, AK, Ishida, T, Ishii, T, Iwashita, T, Kobayashi, T, Nakadaira, T, Nakamura, K, Nitta, K, Oyama, Y, Totsuka, Y, Suzuki, AT, Hasegawa, M, Kato, I, Maesaka, H, Nakaya, T, Nishikawa, K, Sasaki, T, Sato, H, Yamamoto, S, Yokoyama, M, Haines, TJ, Dazeley, S, Hatakeyama, S, Svoboda, R, Blaufuss, E, Goodman, JA, Sullivan, GW, Turcan, D, Cooley, J, Habig, A, Fukuda, Y, Sato, T, Itow, Y, Jung, CK, Kato, T, Kobayashi, K, Malek, M, Mauger, C, McGrew, C, Sarrat, A, Yanagisawa, C, Tamura, N, Sakuda, M, Kuno, Y, Yoshida, M, Kim, SB, Yoo, J, Ishizuka, T, Okazawa, H, Choi, Y, Seo, HK, Gando, Y, Hasegawa, T, Inoue, K, Shirai, J, Suzuki, A, Nishijima, K, Ishino, H, Watanabe, Y, Koshiba, M, Kielczewska, D, Zalipska, J, Berns, HG, Gran, R, Shiraishi, KK, Stachyra, A, Washburn, K, and Wilkes, RJ. "Three flavor neutrino oscillation analysis of atmospheric neutrinos in Super-Kamiokande." Physical Review D 74.3 (August 2006). Full Text

Hosaka, J, Ishihara, K, Kameda, J, Koshio, Y, Minamino, A, Mitsuda, C, Miura, M, Moriyama, S, Nakahata, M, Namba, T, Obayashi, Y, Sakurai, N, Sarrat, A, Shiozawa, M, Suzuki, Y, Takeuchi, Y, Yamada, S, Higuchi, I, Ishitsuka, M, Kajita, T, Kaneyuki, K, Mitsuka, G, Nakayama, S, Nishino, H, Okada, A, Okumura, K, Saji, C, Takenaga, Y, Clark, S, Desai, S, Kearns, E, Likhoded, S, Stone, JL, Sulak, LR, Wang, W, Goldhaber, M, Casper, D, Cravens, JP, Kropp, WR, Liu, DW, Mine, S, Smy, MB, Sobel, HW, Sterner, CW, Vagins, MR, Ganezer, KS, Hill, J, Keig, WE, Jang, JS, Kim, JY, Lim, IT, Scholberg, K, Walter, CW, Ellsworth, RW, Tasaka, S, Guillian, G, Kibayashi, A, Learned, JG, Matsuno, S, Messier, MD, Hayato, Y, Ichikawa, AK, Ishida, T, Ishii, T, Iwashita, T, Kobayashi, T, Nakadaira, T, Nakamura, K, Nitta, K, Oyama, Y, Totsuka, Y, Suzuki, AT, Hasegawa, M, Kato, I, Maesaka, H, Nakaya, T, Nishikawa, K, Sasaki, T, Sato, H, Yamamoto, S, Yokoyama, M, Haines, TJ, Dazeley, S, Kim, BK, Lee, KB, Hatakeyama, S, Svoboda, R, Blaufuss, E, Goodman, JA, Sullivan, GW, Turcan, D, Cooley, J, Habig, A, and Fukuda, Y. "Solar neutrino measurements in Super-Kamiokande-I." Physical Review D Particles, Fields, Gravitation and Cosmology 73.11 (June 8, 2006). Full Text

Yamamoto, S, Zalipska, J, Aliu, E, Andringa, S, Aoki, S, Argyriades, J, Asakura, K, Ashie, R, Berghaus, F, Berns, H, Bhang, H, Blondel, A, Borghi, S, Bouchez, J, Burguet-Castell, J, Casper, D, Catala, J, Cavata, C, Cervera, A, Chen, SM, Cho, KO, Choi, JH, Dore, U, Espinal, X, Fechner, M, Fernandez, E, Fukuda, Y, Gomez-Cadenas, J, Gran, R, Hara, T, Hasegawa, M, Hasegawa, T, Hayashi, K, Hayato, Y, Helmer, RL, Hiraide, K, Hosaka, J, Ichikawa, AK, Iinuma, M, Ikeda, A, Inagaki, T, and Ishida, T et al. "Improved search for nu(mu) --> nu(e) oscillation in a long-baseline accelerator experiment." Phys Rev Lett 96.18 (May 12, 2006): 181801-. Full Text

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