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

Abe, K., et al. “Measurement of the neutrino-oxygen neutral-current interaction cross section by observing nuclear deexcitation γ rays.” Physical Review D  Particles, Fields, Gravitation and Cosmology, vol. 90, no. 7, Oct. 2014. Scopus, doi:10.1103/PhysRevD.90.072012. Full Text

Abe, K., et al. “Search for proton decay via p →νK+ using 260kiloton·year data of Super-Kamiokande search for proton decay via p →νK+ ... K. Abe et al..” Physical Review D  Particles, Fields, Gravitation and Cosmology, vol. 90, no. 7, Oct. 2014. Scopus, doi:10.1103/PhysRevD.90.072005. Full Text

Abe, K., et al. “Measurement of the inclusive νμ charged current cross section on iron and hydrocarbon in the T2K on-axis neutrino beam.” Physical Review D  Particles, Fields, Gravitation and Cosmology, vol. 90, no. 5, Sept. 2014. Scopus, doi:10.1103/PhysRevD.90.052010. Full Text

Abe, K., et al. “Search for nucleon decay via n→ν[over ¯]π0 and p→ν[over ¯]π+ in Super-Kamiokande..” Physical Review Letters, vol. 113, no. 12, Sept. 2014. Epmc, doi:10.1103/physrevlett.113.121802. Full Text

Takhistov, V., et al. “Search for trilepton nucleon decay via p→e+νν and p→μ+νν in the Super-Kamiokande experiment..” Physical Review Letters, vol. 113, no. 10, Sept. 2014. Epmc, doi:10.1103/physrevlett.113.101801. Full Text

Olive, K. A., et al. “Review of particle physics.” Chinese Physics C, vol. 38, no. 9, Aug. 2014. Scopus, doi:10.1088/1674-1137/38/9/090001. Full Text

Abe, K., et al. “Precise measurement of the neutrino mixing parameter θ23 from muon neutrino disappearance in an off-axis beam..” Physical Review Letters, vol. 112, no. 18, May 2014. Epmc, doi:10.1103/physrevlett.112.181801. Full Text

Abe, K., et al. “Measurement of the intrinsic electron neutrino component in the T2K neutrino beam with the ND280 detector.” Physical Review D  Particles, Fields, Gravitation and Cosmology, vol. 89, no. 9, May 2014. Scopus, doi:10.1103/PhysRevD.89.092003. Full Text

Litos, M., et al. “Search for dinucleon decay into kaons in Super-Kamiokande..” Physical Review Letters, vol. 112, no. 13, Apr. 2014. Epmc, doi:10.1103/physrevlett.112.131803. Full Text

Renshaw, A., et al. “First indication of terrestrial matter effects on solar neutrino oscillation..” Physical Review Letters, vol. 112, no. 9, Mar. 2014. Epmc, doi:10.1103/physrevlett.112.091805. Full Text

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