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
(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 at Santa Cruz 1989

Ahlen, S. P., et al. “Arrival time distributions of very high energy cosmic ray muons in MACRO.” Nuclear Physics, Section B, vol. 370, no. 2, Feb. 1992, pp. 432–44. Scopus, doi:10.1016/0550-3213(92)90292-J. Full Text

Belloti, R., et al. “Measurement of electromagnetic and TEV muon components of extensive air showers by eas-top and MACRO experiments.” Nuclear Physics B (Proceedings Supplements), vol. 28, no. 1, Jan. 1992, pp. 393–96. Scopus, doi:10.1016/0920-5632(92)90201-3. Full Text

Bellotti, R., et al. “Search for stellar gravitational collapse by MACRO: Characteristics and results.” Nuclear Physics B (Proceedings Supplements), vol. 28, no. 1, Jan. 1992, pp. 61–64. Scopus, doi:10.1016/0920-5632(92)90147-K. Full Text

Ahlen, S., et al. “Search for neutrino bursts from collapsing stars with the MACRO detector.” Astroparticle Physics, vol. 1, no. 1, Jan. 1992, pp. 11–25. Scopus, doi:10.1016/0927-6505(92)90005-K. Full Text

Ahlen, S. P., et al. “Cosmic ray search for strange quark matter with the macro detector.” Nuclear Physics B (Proceedings Supplements), vol. 24, no. 2, Jan. 1991, pp. 191–94. Scopus, doi:10.1016/0920-5632(91)90323-7. Full Text

Baze, J. M., et al. “Design construction and test of the large superconducting solenoid aleph.” Ieee Transactions on Magnetics, vol. 24, no. 2, Jan. 1988, pp. 1260–63. Scopus, doi:10.1109/20.11465. Full Text

Walter, C. W., et al. “Formation of o2- ions in k(nd)-o2 collisions at intermediate n.” Physical Review A, vol. 34, no. 5, Nov. 1986, pp. 4431–32.

Desai, S., et al. “Publisher's Note: Search for dark matter WIMPs using upward through-going muons in Super-Kamiokande [Phys. Rev. D70, 083523 (2004)].” Physical Review D, vol. 70, no. 10, American Physical Society (APS). Crossref, doi:10.1103/physrevd.70.109901. Full Text

Slosar, Anže, et al. Dark Energy and Modified Gravity.

Abe, K. “Publisher’s Note: Measurement of the intrinsic electron neutrino component in the T2K neutrino beam with the ND280 detector [Phys. Rev. D 89, 092003 (2014)].” Physical Review D, vol. 89, no. 9, American Physical Society (APS). Crossref, doi:10.1103/physrevd.89.099902. Full Text