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

Choi, K, Abe, K, Haga, Y, Hayato, Y, Iyogi, K, Kameda, J, Kishimoto, Y, Miura, M, Moriyama, S, Nakahata, M, Nakano, Y, Nakayama, S, Sekiya, H, Shiozawa, M, Suzuki, Y, Takeda, A, Tomura, T, Wendell, RA, Irvine, T, Kajita, T, Kametani, I, Kaneyuki, K, Lee, KP, Nishimura, Y, Okumura, K, McLachlan, T, Labarga, L, Kearns, E, Raaf, JL, Stone, JL, Sulak, LR, Berkman, S, Tanaka, HA, Tobayama, S, Goldhaber, M, Carminati, G, Kropp, WR, Mine, S, Renshaw, A, Smy, MB, Sobel, HW, Ganezer, KS, and Hill, J et al. "Search for neutrinos from annihilation of captured low-mass dark matter particles in the sun by super-kamiokande." Physical review letters 114.14 (April 6, 2015): 141301-. Full Text

Abe, K, Adam, J, Aihara, H, Akiri, T, Andreopoulos, C, Aoki, S, Ariga, A, Assylbekov, S, Autiero, D, Barbi, M, Barker, GJ, Barr, G, Bartet-Friburg, P, Bass, M, Batkiewicz, M, Bay, F, Berardi, V, Berger, BE, Berkman, S, Bhadra, S, Blaszczyk, FDM, Blondel, A, Bojechko, C, Bordoni, S, Boyd, SB, Brailsford, D, Bravar, A, Bronner, C, Buchanan, N, Calland, RG, Caravaca Rodriguez, J, Cartwright, SL, Castillo, R, Catanesi, MG, Cervera, A, Cherdack, D, Christodoulou, G, Clifton, A, and Coleman, J et al. "Neutrino oscillation physics potential of the T2K experiment." Progress of Theoretical and Experimental Physics 2015.4 (April 1, 2015): 43C01-0. Full Text

Abe, K, Adam, J, Aihara, H, Akiri, T, Andreopoulos, C, Aoki, S, Ariga, A, Assylbekov, S, Autiero, D, Barbi, M, Barker, GJ, Barr, G, Bartet-Friburg, P, Bass, M, Batkiewicz, M, Bay, F, Berardi, V, Berger, BE, Berkman, S, Bhadra, S, Blaszczyk, FDM, Blondel, A, Bolognesi, S, Bordoni, S, Boyd, SB, Brailsford, D, Bravar, A, Bronner, C, Buchanan, N, Calland, RG, Caravaca Rodríguez, J, Cartwright, SL, Castillo, R, Catanesi, MG, Cervera, A, Cherdack, D, Chikuma, N, Christodoulou, G, and Clifton, A et al. "Measurements of neutrino oscillation in appearance and disappearance channels by the T2K experiment with protons on target." Physical Review D 91.7 (April 2015). Full Text

Gustafson, J, Abe, K, Haga, Y, Hayato, Y, Ikeda, M, Iyogi, K, Kameda, J, Kishimoto, Y, Miura, M, Moriyama, S, Nakahata, M, Nakajima, T, Nakano, Y, Nakayama, S, Orii, A, Sekiya, H, Shiozawa, M, Takeda, A, Tanaka, H, Tomura, T, Wendell, RA, Irvine, T, Kajita, T, Kametani, I, Kaneyuki, K, Nishimura, Y, Richard, E, Okumura, K, Labarga, L, Fernandez, P, Berkman, S, Tanaka, HA, Tobayama, S, Kearns, E, Raaf, JL, Stone, JL, Sulak, LR, Goldhaber, M, Carminati, G, Kropp, WR, Mine, S, and Weatherly, P et al. "Search for dinucleon decay into pions at Super-Kamiokande." Physical Review D 91.7 (April 2015). Full Text

Abe, K, Haga, Y, Hayato, Y, Ikeda, M, Iyogi, K, Kameda, J, Kishimoto, Y, Miura, M, Moriyama, S, Nakahata, M, Nakano, Y, Nakayama, S, Sekiya, H, Shiozawa, M, Suzuki, Y, Takeda, A, Tanaka, H, Tomura, T, Ueno, K, Wendell, RA, Yokozawa, T, Irvine, T, Kajita, T, Kametani, I, Kaneyuki, K, Lee, KP, McLachlan, T, Nishimura, Y, Richard, E, Okumura, K, Labarga, L, Fernandez, P, Gustafson, J, Kearns, E, Raaf, JL, Stone, JL, Sulak, LR, Berkman, S, Tanaka, HA, Tobayama, S, Goldhaber, M, and Carminati, G et al. "Test of Lorentz invariance with atmospheric neutrinos." Physical Review D 91.5 (March 2015). Full Text

Abe, K, Adam, J, Aihara, H, Akiri, T, Andreopoulos, C, Aoki, S, Ariga, A, Assylbekov, S, Autiero, D, Barbi, M, Barker, GJ, Barr, G, Bartet-Friburg, P, Bass, M, Batkiewicz, M, Bay, F, Berardi, V, Berger, BE, Berkman, S, Bhadra, S, Blaszczyk, FDM, Blondel, A, Bojechko, C, Bolognesi, S, Bordoni, S, Boyd, SB, Brailsford, D, Bravar, A, Bronner, C, Buchanan, N, Calland, RG, Caravaca Rodríguez, J, Cartwright, SL, Castillo, R, Catanesi, MG, Cervera, A, Cherdack, D, Christodoulou, G, and Clifton, A et al. "Search for short baseline disappearance with the T2K near detector." Physical Review D 91.5 (March 2015). Full Text

Abe, K, Haga, Y, Hayato, Y, Ikeda, M, Iyogi, K, Kameda, J, Kishimoto, Y, Miura, M, Moriyama, S, Nakahata, M, Nakano, Y, Nakayama, S, Sekiya, H, Shiozawa, M, Suzuki, Y, Takeda, A, Tanaka, H, Tomura, T, Ueno, K, Wendell, RA, Yokozawa, T, Irvine, T, Kajita, T, Kametani, I, Kaneyuki, K, Lee, KP, McLachlan, T, Nishimura, Y, Richard, E, Okumura, K, Labarga, L, Fernandez, P, Gustafson, J, Kearns, E, Raaf, JL, Stone, JL, Sulak, LR, Berkman, S, Tanaka, HA, Tobayama, S, Goldhaber, M, and Carminati, G et al. "Limits on sterile neutrino mixing using atmospheric neutrinos in Super-Kamiokande." Physical Review D 91.5 (March 2015). Full Text

Zhang, H, Abe, K, Hayato, Y, Iyogi, K, Kameda, J, Kishimoto, Y, Miura, M, Moriyama, S, Nakahata, M, Nakano, Y, Nakayama, S, Sekiya, H, Shiozawa, M, Suzuki, Y, Takeda, A, Takenaga, Y, Tomura, T, Ueno, K, Yokozawa, T, Wendell, R, Kaji, H, Kajita, T, Kaneyuki, K, Lee, K, Nishimura, Y, Okumura, K, McLachlan, T, Labarga, L, Barkman, S, Tanaka, T, Tobayama, S, Kearns, E, Raaf, J, Stone, J, Sulak, L, Goldhaber, M, Bays, K, Carminati, G, Kropp, W, Mine, S, Renshaw, A, Smy, M, Sobel, H, and Ganezer, K et al. "Supernova Relic Neutrino search with neutron tagging at Super-Kamiokande-IV." Astroparticle Physics 60 (January 2015): 41-46. Full Text

Abe, K, Adam, J, Aihara, H, Akiri, T, Andreopoulos, C, Aoki, S, Ariga, A, Assylbekov, S, Autiero, D, Barbi, M, Barker, GJ, Barr, G, Bass, M, Batkiewicz, M, Bay, F, Berardi, V, Berger, BE, Berkman, S, Bhadra, S, Blaszczyk, FDM, Blondel, A, Bojechko, C, Bordoni, S, Boyd, SB, Brailsford, D, Bravar, A, Bronner, C, Buchanan, N, Calland, RG, Caravaca Rodríguez, J, Cartwright, SL, Castillo, R, Catanesi, MG, Cervera, A, Cherdack, D, Christodoulou, G, Clifton, A, Coleman, J, Coleman, SJ, and Collazuol, G et al. "Measurement of the inclusive electron neutrino charged current cross section on carbon with the T2K near detector." Physical review letters 113.24 (December 11, 2014): 241803-. Full Text

Abe, K, Adam, J, Aihara, H, Akiri, T, Andreopoulos, C, Aoki, S, Ariga, A, Ariga, T, Assylbekov, S, Autiero, D, Barbi, M, Barker, GJ, Barr, G, Bass, M, Batkiewicz, M, Bay, F, Bentham, SW, Berardi, V, Berger, BE, Berkman, S, Bertram, I, Bhadra, S, Blaszczyk, FDM, Blondel, A, Bojechko, C, Bordoni, S, Boyd, SB, Brailsford, D, Bravar, A, Bronner, C, Buchanan, N, Calland, RG, Caravaca Rodríguez, J, Cartwright, SL, Castillo, R, Catanesi, MG, Cervera, A, Cherdack, D, Christodoulou, G, and Clifton, A et al. "Measurement of the neutrino-oxygen neutral-current interaction cross section by observing nuclear deexcitation rays." Physical Review D 90.7 (October 2014). Full Text

Pages