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

Li, Z., et al. “Measurement of the tau neutrino cross section in atmospheric neutrino oscillations with Super-Kamiokande.” Physical Review D, vol. 98, no. 5, Sept. 2018. Scopus, doi:10.1103/PhysRevD.98.052006. Full Text

Tanabashi, M., et al. “Review of Particle Physics.” Physical Review D, vol. 98, no. 3, Aug. 2018. Scopus, doi:10.1103/PhysRevD.98.030001. Full Text

Abe, K., et al. “Measurement of inclusive double-differential νμ charged-current cross section with improved acceptance in the T2K off-axis near detector.” Physical Review D, vol. 98, no. 1, July 2018. Scopus, doi:10.1103/PhysRevD.98.012004. Full Text

Abe, K., et al. “Physics potentials with the second Hyper-Kamiokande detector in Korea.” Progress of Theoretical and Experimental Physics, vol. 2018, no. 6, Oxford University Press (OUP), June 2018. Crossref, doi:10.1093/ptep/pty044. Full Text

Kachulis, C., et al. “Search for Boosted Dark Matter Interacting with Electrons in Super-Kamiokande.Physical Review Letters, vol. 120, no. 22, June 2018, p. 221301. Epmc, doi:10.1103/physrevlett.120.221301. Full Text

Abe, K., et al. “Search for Neutrinos in Super-Kamiokande Associated with the GW170817 Neutron-star Merger.” Astrophysical Journal Letters, vol. 857, no. 1, Apr. 2018. Scopus, doi:10.3847/2041-8213/aabaca. Full Text

Abe, K., et al. “Atmospheric neutrino oscillation analysis with external constraints in Super-Kamiokande I-IV.” Physical Review D, vol. 97, no. 7, Apr. 2018. Scopus, doi:10.1103/PhysRevD.97.072001. Full Text

Abe, K., et al. “Measurement of the single π 0 production rate in neutral current neutrino interactions on water.” Physical Review D, vol. 97, no. 3, Feb. 2018. Scopus, doi:10.1103/PhysRevD.97.032002. Full Text


Battistoni, G. “Study of photonuclear interaction of muons in rock with the MACRO experiment.” Vulcano Workshop 1998  Frontier Objects in Astrophysics and Particle Physics, edited by F. Giovannelli and G. Mannocchi, vol. 65, SOC ITALIANA FISICA, 1999, pp. 419–27.

Mazziotta, M. N. “Performance of the transition radiation detector of the MACRO experiment.” Nuclear Physics B, ELSEVIER SCIENCE BV, 1998, pp. 289–94.

Palamara, Ornella. “Multiple muons and primary cosmic composition studies with MACRO.” Nuclear Physics B  Proceedings Supplements, vol. 28, no. 1, Elsevier BV, 1992, pp. 389–92. Crossref, doi:10.1016/0920-5632(92)90200-c. Full Text