Christopher Walter

Christopher Walter

Professor of Physics

Interim Associate Chair of Physics

Office Location: 
Box 90305 Physics Department, Duke University, Durham, NC 27710
Front Office Address: 
Box 90305, Durham, NC 27708-0305
(919) 660-2535


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 - Santa Cruz 1989

Beringer, J., et al. “Review of particle physics.” Physical Review D  Particles, Fields, Gravitation and Cosmology, vol. 86, no. 1, 2012. Scival, doi:10.1103/PhysRevD.70.096011. Full Text

Mitsuka, G., et al. “Study of nonstandard neutrino interactions with atmospheric neutrino data in Super-Kamiokande i and II.” Physical Review D  Particles, Fields, Gravitation and Cosmology, vol. 84, no. 11, Dec. 2011. Scopus, doi:10.1103/PhysRevD.84.113008. Full Text

Abe, K., et al. “The T2K experiment.” Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 659, no. 1, Dec. 2011, pp. 106–35. Scopus, doi:10.1016/j.nima.2011.06.067. Full Text

Abe, K., et al. “Search for differences in oscillation parameters for atmospheric neutrinos and antineutrinos at Super-Kamiokande.Physical Review Letters, vol. 107, no. 24, Dec. 2011, p. 241801. Epmc, doi:10.1103/physrevlett.107.241801. Full Text

Tanaka, T., et al. “An indirect search for weakly interacting massive particles in the sun using 3109.6days of upward-going muons in super-kamiokande.” Astrophysical Journal, vol. 742, no. 2, Dec. 2011. Scopus, doi:10.1088/0004-637X/742/2/78. Full Text

Walter, C. “Cross-section effects in the super-kamiokande tau appearance analysis.” Aip Conference Proceedings, vol. 1405, Dec. 2011, pp. 186–91. Scopus, doi:10.1063/1.3661583. Full Text

Tremblin, P., et al. “Site testing for submillimetre astronomy at Dome C, Antarctica.” Astronomy and Astrophysics, vol. 535, Nov. 2011. Scopus, doi:10.1051/0004-6361/201117345. Full Text

Abe, K., et al. “Indication of electron neutrino appearance from an accelerator-produced off-axis muon neutrino beam.Phys Rev Lett, vol. 107, no. 4, July 2011, p. 041801. Pubmed, doi:10.1103/PhysRevLett.107.041801. Full Text

Renard, B., et al. “Ten years of cryomagnetic W7-X test facility construction and operation.” Cryogenics, vol. 51, no. 7, July 2011, pp. 384–88. Scopus, doi:10.1016/j.cryogenics.2011.03.005. Full Text

Abe, K., et al. “Solar neutrino results in Super-Kamiokande-III.” Physical Review D  Particles, Fields, Gravitation and Cosmology, vol. 83, no. 5, Mar. 2011. Scopus, doi:10.1103/PhysRevD.83.052010. Full Text