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

Zhang, Y, 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, Gustafson, J, Kachulis, C, Kearns, E, Raaf, JL, Stone, JL, Sulak, LR, Berkman, S, Nantais, CM, Tanaka, HA, Tobayama, S, Goldhaber, M, and Carminati, G et al. "First measurement of radioactive isotope production through cosmic-ray muon spallation in Super-Kamiokande IV." Physical Review D 93.1 (January 2016). 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, Chikuma, N, and Christodoulou, G et al. "Upper bound on neutrino mass based on T2K neutrino timing measurements." Physical Review D 93.1 (January 2016). 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, Calland, RG, Caravaca Rodríguez, J, Cartwright, SL, Castillo, R, Catanesi, MG, Cervera, A, Cherdack, D, Chikuma, N, Christodoulou, G, and Clifton, A et al. "Measurement of the charged-current quasielastic cross section on carbon with the ND280 detector at T2K." Physical Review D 92.11 (December 2015). Full Text

Takhistov, V, 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, Gustafson, J, Kachulis, C, Kearns, E, Raaf, JL, Stone, JL, Sulak, LR, Berkman, S, Nantais, CM, Tanaka, HA, Tobayama, S, Goldhaber, M, and Carminati, G et al. "Search for Nucleon and Dinucleon Decays with an Invisible Particle and a Charged Lepton in the Final State at the Super-Kamiokande Experiment." Physical review letters 115.12 (September 18, 2015): 121803-. Full Text

Abe, K, Adam, J, Aihara, H, 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, Clifton, A, and Coleman, J et al. "Measurement of the electron neutrino charged-current interaction rate on water with the T2K ND280 detector." Physical Review D 91.11 (June 2015). Full Text

Abe, K, Adam, J, Aihara, H, 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, Clifton, A, and Coleman, J et al. "Measurement of the charged current quasielastic cross section on carbon with the T2K on-axis neutrino beam." Physical Review D 91.11 (June 2015). Full Text

Abe, K, Aihara, H, Andreopoulos, C, Anghel, I, Ariga, A, Ariga, T, Asfandiyarov, R, Askins, M, Back, JJ, Ballett, P, Barbi, M, Barker, GJ, Barr, G, Bay, F, Beltrame, P, Berardi, V, Bergevin, M, Berkman, S, Berry, T, Bhadra, S, Blaszczyk, FDM, Blondel, A, Bolognesi, S, Boyd, SB, Bravar, A, Bronner, C, Cafagna, FS, Carminati, G, Cartwright, SL, Catanesi, MG, Choi, K, Choi, JH, Collazuol, G, Cowan, G, Cremonesi, L, Davies, G, De Rosa, G, Densham, C, Detwiler, J, Dewhurst, D, and Di Lodovico, F et al. "Physics potential of a long-baseline neutrino oscillation experiment using a J-PARC neutrino beam and Hyper-Kamiokande." Progress of Theoretical and Experimental Physics 2015.5 (May 19, 2015): 53C02-0. Full Text

Walter, C. "The Brighter-Fatter and other sensor effects in CCD simulations for precision astronomy." Journal of Instrumentation 10.05 (May 1, 2015): C05015-C05015. Full Text

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

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