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

Scholberg, K. "Experimentation of neutrino physics." TASI 2008 - Proceedings of the 2008 Theoretical Advanced Study Institute in Elementary Particle Physics: The Dawn of the LHC Era (December 1, 2010): 565-622.

Nakamura, K, Hagiwara, K, Hikasa, K, Murayama, H, Tanabashi, M, Watari, T, Amsler, C, Antonelli, M, Asner, DM, Baer, H, Band, HR, Barnett, RM, Basaglia, T, Bergren, E, Beringer, J, Bernardi, G, Bertl, W, Bichsel, H, Biebel, O, Blucher, E, Blusk, S, Cahn, RN, Carena, M, Ceccucci, A, Chakraborty, D, Chen, M-C, Chivukula, RS, Cowan, G, Dahl, O, D'Ambrosio, G, Damour, T, de Florian, D, de Gouvea, A, DeGrand, T, Dissertori, G, Dobrescu, B, Doser, M, Drees, M, Edwards, DA, Eidelman, S, and Erler, J et al. "REVIEW OF PARTICLE PHYSICS." JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS 37.7A (July 2010): 1-5. Full Text

Wendell, R, Ishihara, C, Abe, K, Hayato, Y, Iida, T, Ikeda, M, Iyogi, K, Kameda, J, Kobayashi, K, Koshio, Y, Kozuma, Y, Miura, M, Moriyama, S, Nakahata, M, Nakayama, S, Obayashi, Y, Ogawa, H, Sekiya, H, Shiozawa, M, Suzuki, Y, Takeda, A, Takenaga, Y, Takeuchi, Y, Ueno, K, Ueshima, K, Watanabe, H, Yamada, S, Yokozawa, T, Hazama, S, Kaji, H, Kajita, T, Kaneyuki, K, McLachlan, T, Okumura, K, Shimizu, Y, Tanimoto, N, Vagins, MR, Dufour, F, Kearns, E, Litos, M, Raaf, JL, Stone, JL, and Sulak, LR et al. "Atmospheric neutrino oscillation analysis with subleading effects in Super-Kamiokande I, II, and III." Physical Review D - Particles, Fields, Gravitation and Cosmology 81.9 (2010). Full Text Open Access Copy

Choubey, S, Schwetz, T, and Walter, C. "Working group I report (theory)." AIP Conference Proceedings 1222 (2010): 65-74.

Iida, T, and Bays, K. "A Search for supernova relic neutrinos at Super-Kamiokande." Journal of Physics: Conference Series 203 (2010). Full Text

Nishino, H, Clark, S, Abe, K, Hayato, Y, Iida, T, Ikeda, M, Kameda, J, Kobayashi, K, Koshio, Y, Miura, M, Moriyama, S, Nakahata, M, Nakayama, S, Obayashi, Y, Ogawa, H, Sekiya, H, Shiozawa, M, Suzuki, Y, Takeda, A, Takenaga, Y, Takeuchi, Y, Ueno, K, Ueshima, K, Watanabe, H, Yamada, S, Hazama, S, Higuchi, I, Ishihara, C, Kajita, T, Kaneyuki, K, Mitsuka, G, Okumura, K, Tanimoto, N, Vagins, MR, Dufour, F, Kearns, E, Litos, M, Raaf, JL, Stone, JL, Sulak, LR, Wang, W, Goldhaber, M, and Dazeley, S et al. "Search for proton decay via p-->e+pi0 and p-->micro+pi0 in a large water Cherenkov detector." Phys Rev Lett 102.14 (April 10, 2009): 141801-. Full Text

Watanabe, H, Zhang, H, Abe, K, Hayato, Y, Iida, T, Ikeda, M, Kameda, J, Kobayashi, K, Koshio, Y, Miura, M, Moriyama, S, Nakahata, M, Nakayama, S, Obayashi, Y, Ogawa, H, Sekiya, H, Shiozawa, M, Suzuki, Y, Takeda, A, Takenaga, Y, Takeuchi, Y, Ueno, K, Ueshima, K, Yamada, S, Hazama, S, Higuchi, I, Ishihara, C, Kajita, T, Kaneyuki, K, Mitsuka, G, Nishino, H, Okumura, K, Tanimoto, N, Clark, S, Desai, S, Dufour, F, Kearns, E, Likhoded, S, Litos, M, Raaf, J, Stone, JL, Sulak, LR, Wang, W, and Goldhaber, M et al. "First study of neutron tagging with a water Cherenkov detector." Astroparticle Physics 31.4 (2009): 320-328. Full Text

Fechner, M, and Walter, CW. "The physics impact of proton track identification in future megaton-scale water Cherenkov detectors." Journal of High Energy Physics 2009.11 (2009). Full Text

Fechner, M, Abe, K, Hayato, Y, Iida, T, Ikeda, M, Kameda, J, Kobayashi, K, Koshio, Y, Miura, M, Moriyama, S, Nakahata, M, Nakayama, S, Obayashi, Y, Ogawa, H, Sekiya, H, Shiozawa, M, Suzuki, Y, Takeda, A, Takenaga, Y, Takeuchi, Y, Ueno, K, Ueshima, K, Watanabe, H, Yamada, S, Hazama, S, Higuchi, I, Ishihara, C, Kajita, T, Kaneyuki, K, Mitsuka, G, Nishino, H, Okumura, K, Tanimoto, N, Vagins, MR, Dufour, F, Kearns, E, Litos, M, Raaf, JL, Stone, JL, Sulak, LR, Wang, W, Goldhaber, M, and Dazeley, S et al. "Kinematic reconstruction of atmospheric neutrino events in a large water Cherenkov detector with proton identification." Physical Review D - Particles, Fields, Gravitation and Cosmology 79.11 (2009). Full Text

Thrane, E, Abe, K, Hayato, Y, Iida, T, Ikeda, M, Kameda, J, Kobayashi, K, Koshio, Y, Miura, M, Moriyama, S, Nakahata, M, Nakayama, S, Obayashi, Y, Ogawa, H, Sekiya, H, Shiozawa, M, Suzuki, Y, Takeda, A, Takenaga, Y, Takeuchi, Y, Ueno, K, Ueshima, K, Watanabe, H, Yamada, S, Vagins, MR, Hazama, S, Higuchi, I, Ishihara, C, Kajita, T, Kaneyuki, K, Mitsuka, G, Nishino, H, Okumura, K, Tanimoto, N, Dufour, F, Kearns, E, Litos, M, Raaf, JL, Stone, JL, Sulak, LR, Goldhaber, M, Bays, K, and Casper, D et al. "Search for neutrinos from GRB 080319B at super-kamiokande." Astrophysical Journal 697.1 (2009): 730-734. Full Text

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