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

Abe, K., et al. “First measurement of the νμ charged-current cross section on a water target without pions in the final state.” Physical Review D, vol. 97, no. 1, Jan. 2018. Scopus, doi:10.1103/PhysRevD.97.012001. Full Text

Abe, K., 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, vol. 850, no. 2, Dec. 2017. Scopus, doi:10.3847/1538-4357/aa951b. Full Text

Abe, K., et al. “Measurement of neutrino and antineutrino oscillations by the T2K experiment including a new additional sample of ve interactions at the far detector.” Physical Review D, vol. 96, no. 9, Nov. 2017. Scopus, doi:10.1103/PhysRevD.96.092006. Full Text

Abe, K., et al. “Measurement of ν¯μ and νμ charged current inclusive cross sections and their ratio with the T2K off-axis near detector.” Physical Review D, vol. 96, no. 5, Sept. 2017. Scopus, doi:10.1103/PhysRevD.96.052001. Full Text

Abe, K., et al. “Search for nucleon decay into charged antilepton plus meson in 0.316  megaton·years exposure of the Super-Kamiokande water Cherenkov detector.” Physical Review D, vol. 96, no. 1, July 2017. Scopus, doi:10.1103/PhysRevD.96.012003. Full Text

Abe, K., et al. “Updated T2K measurements of muon neutrino and antineutrino disappearance using 1.5×1021 protons on target.” Physical Review D, vol. 96, no. 1, July 2017. Scopus, doi:10.1103/PhysRevD.96.011102. Full Text

Abe, K., et al. “Search for Lorentz and CPT violation using sidereal time dependence of neutrino flavor transitions over a short baseline.” Physical Review D, vol. 95, no. 11, June 2017. Scopus, doi:10.1103/PhysRevD.95.111101. Full Text

Clément, E., et al. “Conceptual design of the AGATA 1π array at GANIL.” Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 855, May 2017, pp. 1–12. Scopus, doi:10.1016/j.nima.2017.02.063. Full Text

Abe, K., et al. “Combined Analysis of Neutrino and Antineutrino Oscillations at T2K.Physical Review Letters, vol. 118, no. 15, Apr. 2017, p. 151801. Epmc, doi:10.1103/physrevlett.118.151801. Full Text

Abe, K., 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, vol. 95, no. 1, Jan. 2017. Scopus, doi:10.1103/PhysRevD.95.012010. Full Text