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

Research in High Energy Physics at Duke University awarded by Department of Energy (Principal Investigator). 2013 to 2019

CAREER: Optimization of a large water Cherenkov detector for the Deep Underground Science and Engineering Laboratory awarded by National Science Foundation (Principal Investigator). 2009 to 2015

Research in High Energy Physics at Duke University awarded by Department of Energy (Co-Principal Investigator). 1991 to 2013

Research in High Energy Physics at Duke University awarded by Department of Energy (Co-Principal Investigator). 1991 to 2009

Walter, CW. "The super-kamiokande experiment." Neutrino Oscillations: Present Status and Future Plans. January 1, 2008. 19-43. Full Text

Abe, K, Amey, J, Andreopoulos, C, Antonova, M, Aoki, S, Ariga, A, Ashida, Y, Ban, S, Barbi, M, Barker, GJ, Barr, G, Barry, C, Batkiewicz, M, Berardi, V, Berkman, S, Bhadra, S, Bienstock, S, Blondel, A, Bolognesi, S, Bordoni, S, Boyd, SB, Brailsford, D, Bravar, A, Bronner, C, Buizza Avanzini, M, Calland, RG, Campbell, T, Cao, S, Cartwright, SL, Catanesi, MG, Cervera, A, Chappell, A, Checchia, C, Cherdack, D, Chikuma, N, Christodoulou, G, Coleman, J, Collazuol, G, Coplowe, D, and Cudd, A et al. "Measurement of and charged current inclusive cross sections and their ratio with the T2K off-axis near detector." Physical Review D 96.5 (September 2017). Full Text

Abe, K, Bronner, C, Pronost, G, Hayato, Y, Ikeda, M, Iyogi, K, Kameda, J, Kato, Y, Kishimoto, Y, Marti, L, Miura, M, Moriyama, S, Nakahata, M, Nakano, Y, Nakayama, S, Okajima, Y, Orii, A, Sekiya, H, Shiozawa, M, Sonoda, Y, Takeda, A, Takenaka, A, Tanaka, H, Tasaka, S, Tomura, T, Akutsu, R, Kajita, T, Kaneyuki, K, Nishimura, Y, Okumura, K, Tsui, KM, Labarga, L, Fernandez, P, Blaszczyk, FDM, Gustafson, J, Kachulis, C, Kearns, E, Raaf, JL, Stone, JL, Sulak, LR, Berkman, S, and Tobayama, S et al. "Search for nucleon decay into charged antilepton plus meson in exposure of the Super-Kamiokande water Cherenkov detector." Physical Review D 96.1 (July 2017). Full Text

Abe, K, Amey, J, Andreopoulos, C, Antonova, M, Aoki, S, Ariga, A, Ashida, Y, Autiero, D, Ban, S, Barbi, M, Barker, GJ, Barr, G, Barry, C, Bartet-Friburg, P, Batkiewicz, M, Berardi, V, Berkman, S, Bhadra, S, Bienstock, S, Blondel, A, Bolognesi, S, Bordoni, S, Boyd, SB, Brailsford, D, Bravar, A, Bronner, C, Buizza Avanzini, M, Calland, RG, Campbell, T, Cao, S, Cartwright, SL, Catanesi, MG, Cervera, A, Chappell, A, Checchia, C, Cherdack, D, Chikuma, N, Christodoulou, G, Clifton, A, and Coleman, J et al. "Updated T2K measurements of muon neutrino and antineutrino disappearance using protons on target." Physical Review D 96.1 (July 2017). Full Text

Abe, K, Amey, J, Andreopoulos, C, Antonova, M, Aoki, S, Ariga, A, Assylbekov, S, Autiero, D, Ban, S, Barbato, FCT, Barbi, M, Barker, GJ, Barr, G, Barry, C, Bartet-Friburg, P, Batkiewicz, M, Berardi, V, Berkman, S, Bhadra, S, Bienstock, S, Blondel, A, Bolognesi, S, Bordoni, S, Boyd, SB, Brailsford, D, Bravar, A, Bronner, C, Buizza Avanzini, M, Calland, RG, Campbell, T, Cao, S, Cartwright, SL, Castillo, R, Catanesi, MG, Cervera, A, Chappell, A, Checchia, C, Cherdack, D, and Chikuma, N et al. "Search for Lorentz and violation using sidereal time dependence of neutrino flavor transitions over a short baseline." Physical Review D 95.11 (June 2017). Full Text

Abe, K, Amey, J, Andreopoulos, C, Antonova, M, Aoki, S, Ariga, A, Autiero, D, Ban, S, Barbi, M, Barker, GJ, Barr, G, Barry, C, Bartet-Friburg, P, Batkiewicz, M, Berardi, V, Berkman, S, Bhadra, S, Bienstock, S, Blondel, A, Bolognesi, S, Bordoni, S, Boyd, SB, Brailsford, D, Bravar, A, Bronner, C, Buizza Avanzini, M, Calland, RG, Campbell, T, Cao, S, Cartwright, SL, Catanesi, MG, Cervera, A, Checchia, C, Cherdack, D, Chikuma, N, Christodoulou, G, Clifton, A, Coleman, J, Collazuol, G, and Coplowe, D et al. "Combined Analysis of Neutrino and Antineutrino Oscillations at T2K." Physical review letters 118.15 (April 10, 2017): 151801-. Full Text

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, Akutsu, R, Irvine, T, Kajita, T, 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, Kropp, WR, and Mine, S et al. "Search for proton decay via and in exposure of the Super-Kamiokande water Cherenkov detector." Physical Review D 95.1 (January 2017). Full Text

Abe, K, Andreopoulos, C, Antonova, M, Aoki, S, Ariga, A, Assylbekov, S, Autiero, D, Ban, S, Barbi, M, Barker, GJ, Barr, G, Bartet-Friburg, P, Batkiewicz, M, Bay, F, Berardi, V, Berkman, S, Bhadra, S, Bienstock, S, Blondel, A, Bolognesi, S, Bordoni, S, Boyd, SB, Brailsford, D, Bravar, A, Bronner, C, Buizza Avanzini, M, Calland, RG, Campbell, T, Cao, S, Caravaca Rodríguez, J, Cartwright, SL, Castillo, R, Catanesi, MG, Cervera, A, Cherdack, D, Chikuma, N, Christodoulou, G, Clifton, A, and Coleman, J et al. "First measurement of the muon neutrino charged current single pion production cross section on water with the T2K near detector." Physical Review D 95.1 (January 2017). Full Text

Abe, K, Andreopoulos, C, Antonova, M, Aoki, S, Ariga, A, Assylbekov, S, Autiero, D, Ban, S, Barbi, M, Barker, GJ, Barr, G, Bartet-Friburg, P, Batkiewicz, M, Bay, F, Berardi, V, Berkman, S, Bhadra, S, Blondel, A, Bolognesi, S, Bordoni, S, Boyd, SB, Brailsford, D, Bravar, A, Bronner, C, Buizza Avanzini, M, Calland, RG, Campbell, T, Cao, S, Caravaca Rodríguez, J, Cartwright, SL, Castillo, R, Catanesi, MG, Cervera, A, Cherdack, D, Chikuma, N, Christodoulou, G, Clifton, A, Coleman, J, and Collazuol, G et al. "Measurement of Coherent π^{+} Production in Low Energy Neutrino-Carbon Scattering." Physical review letters 117.19 (November 4, 2016): 192501-. Full Text

Abe, K, Haga, K, 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, Tasaka, S, Tomura, T, Akutsu, R, Kajita, T, Kaneyuki, K, Nishimura, Y, Richard, E, Okumura, K, Labarga, L, Fernandez, P, Blaszczyk, FDM, Gustafson, J, Kachulis, C, Kearns, E, Raaf, JL, Stone, JL, Sulak, LR, Berkman, S, Nantais, CM, Tobayama, S, Goldhaber, M, Kropp, WR, Mine, S, and Weatherly, P et al. "SEARCH FOR NEUTRINOS IN SUPER-KAMIOKANDE ASSOCIATED WITH GRAVITATIONAL-WAVE EVENTS GW150914 AND GW151226." The Astrophysical Journal 830.1 (October 10, 2016): L11-L11. Full Text

Olive, KA. "Review of Particle Physics." Chinese Physics C 40.10 (October 2016): 100001-100001. Full Text

Pages

Rasmussen, A, Guyonnet, A, Lage, C, Antilogus, P, Astier, P, Doherty, P, Gilmore, K, Kotov, I, Lupton, R, Nomerotski, A, O'Connor, P, Stubbs, C, Tyson, A, and Walter, C. "High fidelity point-spread function retrieval in the presence of electrostatic, hysteretic pixel response." January 1, 2016. Full Text

Cravens, P, Hosaka, J, Ishihara, K, Kameda, J, Koshio, Y, Minamino, A, Mitsuda, G, 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, and Smy, MB et al. "Current status of solar neutrinos at super-kamiokande." American Physical Society, 2006.

Cravens, P, Hosaka, J, Ishihara, K, Kameda, J, Koshio, Y, Minamino, A, Mitsuda, G, 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, and Smy, MB et al. "Current status of solar neutrinos at super-kamiokande." January 1, 2006.

Walter, CW, McConnel, K, and Sakuda, M. "Low energy neutrino-nucleus interactions." 2004.