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

Selected Grants

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

Chaumette, P, Cure, C, Deregel, J, Genevey, P, Kircher, F, Le Bars, J, Le Coroller, A, Lesmond, C, Lottin, JC, Perot, J, Sellier, JC, and Walter, C. Large 1.8 K facility for magnet tests. December 1, 1990.

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, Assylbekov, S, 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, Castillo, R, Catanesi, MG, Cervera, A, Chappell, A, Checchia, C, CherdacK, D, Chikuma, N, and Christodoulou, G et al. "Measurement of the single π 0 production rate in neutral current neutrino interactions on water." Physical Review D 97.3 (February 1, 2018). 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. "First measurement of the νμ charged-current cross section on a water target without pions in the final state." Physical Review D 97 (January 1, 2018). 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 an Excess of Events in the Super-Kamiokande Detector in the Directions of the Astrophysical Neutrinos Reported by the IceCube Collaboration." Astrophysical Journal 850.2 (December 1, 2017). 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 neutrino and antineutrino oscillations by the T2K experiment including a new additional sample of veinteractions at the far detector." Physical Review D 96.9 (November 1, 2017). 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

Clément, E, Michelagnoli, C, de France, G, Li, H, Lemasson, A, Barthe Dejean, C, Beuzard, M, Bougault, P, Cacitti, J, Foucher, J-L, Fremont, G, Gangnant, P, Goupil, J, Houarner, C, Jean, M, Lefevre, A, Legeard, L, Legruel, F, Maugeais, C, Ménager, L, Ménard, N, Munoz, H, Ozille, M, Raine, B, Ropert, J, Saillant, F, Spitaels, C, Tripon, M, Vallerand, P, Voltolini, G, Korten, W, Salsac, M-D, Theisen, C, Zielińska, M, Joannem, T, Karolak, M, Kebbiri, M, Lotode, A, Touzery, R, Walter, C, and Korichi, A et al. "Conceptual design of the AGATA array at GANIL." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 855 (May 2017): 1-12. 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

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

Durand, GA, Tremblin, P, Minier, V, Reinert, Y, Leroy Dos Santos, C, Rodriguez, L, Joffrin, X, Busso, M, Tosti, G, Nucciarelli, G, Dolci, M, Straniero, O, Valentini, A, Abia, C, Christille, JM, Doumayrou, E, Lortholary, M, Charron, P, Lotrus, P, Walter, C, Ronayette, S, Challita, Z, Fromont, L, Condamin, M, Kwon, MK, and Tavagnacco, D. "Antarctic observations at long wavelengths with the IRAIT-ITM Telescope at Dome C." January 1, 2014. Full Text

Chantant, M, Genini, L, Bayetti, P, Millet, F, Wanner, M, Massaut, V, Corte, AD, Ardelier-Desage, F, Catherine-Dumont, V, Dael, A, Decool, P, Donati, A, Duchateau, J, Garibaldi, P, Girard, S, Hatchressian, J, Fejoz, P, Jamotton, P, Jourdheuil, L, Juster, F, Kuster, O, Lebourg, P, Leroux, F, Molinie, F, Renard, B, Reynaud, P, Schild, T, Spuig, P, Turtu, S, Vieillard, L, and Walter, C. "A coil test facility for the cryogenic tests of the JT-60SA TF coils." October 2011. Full Text

Durand, GA, Minier, V, Lagage, PO, Daddi, E, Khouloudi, SE, Nicola, SB, Talvard, M, Veyssière, C, André, G, Walter, C, Sabbatini, L, Challita, Z, Storey, JWV, Calisse, P, Pierre, A, and Busso, M. "Toward a large telescope facility for submm/FIR astronomy at dome C." December 1, 2008. Full Text

Talvard, M, André, P, Rodriguez, L, Minier, V, Benoit, A, Leriche, B, Pajot, F, Vigroux, L, Agnèse, P, Boulade, O, Doumayrou, E, Dubreuil, D, Durand, G, Gallais, P, Horeau, B, Lagage, PO, Le-Pennec, Y, Lortholary, M, Martignac, J, Revéret, V, Schneider, N, Stutzki, J, Veyssière, C, and Walter, C. "ArTeMiS: Filled bolometer arrays for next generation submm telescopes." October 17, 2006. 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.

Schild, T, Bouziat, D, Bredy, P, Dispau, G, Donati, A, Fazilleau, P, Genini, L, Jacquemet, A, Levesy, B, Molinie, F, Sapper, J, Walter, C, Wanner, M, and Wegener, L. "Overview of a new test facility for the W7X coils acceptance tests." March 2002. Full Text