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Professor, Department of Physics
Office: Weniger 301
Phone: +1(541) 737-4631
Research Group Website: http://blogs.oregonstate.edu/schellmanresearch/
Recent Courses: PH314 Modern Physics
B.S. in Mathematics (1977) Stanford
M.A. in Physics (1980) University of California, Berkeley
Ph.D. in Physics (1984) University of California, Berkeley
Postdoctoral Fellow (1985-1988) University of Chicago
Wilson Fellow (1988-1990) Fermilab
Faculty, Deparment of Physics and Astronomy, Northwestern University (1990-2014)
Associate Dean for Research and Graduate Studies, College of Arts and Sciences, Northwestern University (2004-2007)
Chair, Department of Physics and Astronomy, Northwestern University (2010-2014)
DOE Outstanding Junior Investigator (1991)
A.P. Sloan Fellow (1993)
Fellow of the American Physical Society (2000)
Fermilab Employee Recognition Award (2000)
APS Division of Particles and Fields Mentoring Award (2015)
My research interest is in the intersection of strong and weak interactions of elementary particles. The weak interactions are a very powerful probe of fundamental forces, but they are very hard to measure experimentally as their effects can be masked by strong nuclear forces. Over the past 30 years, I have led campaigns to measure the Weinberg Angle, which describes the mixing between electromagnetic and weak forces, in several experiments, first in a neutrino-nucleus scattering experiment, NuTeV, at Fermilab and then through measurements of the W boson mass and Z boson couplings at the Tevatron Proton-Anti-proton collider. All of these measurements required careful study of the strong interaction physics of quarks inside protons and nuclei to extract the weak interaction signal. My current research program consists of the MINERvA and DUNE experiments at Fermilab which are searching for evidence of CP violation in neutrino scattering, which may explain the matter-anti-matter asymmetry in the Universe. MINERvA is doing a careful study of strong interaction effects in neutrino scattering which will lead to better understanding of precision CP violation physics when DUNE comes online in the mid 2020’s.
V. M. Abazov et al. [D0 Collaboration], “Measurement of the W Boson Mass with the D0 Detector,” Phys. Rev. Lett. 108, 151804 (2012). [arXiv:1203.0293 [hep-ex]]
V. M. Abazov et al. [D0 Collaboration], “Measurement of sin2 θW and Z-light quark couplings using the forward-backward charge asymmetry in pp ̄ → Z/γ∗ → e+e− events with L = 5.0 fb−1 at sqrt(s) = 1.96 TeV,” Phys. Rev. D 84, 012007 (2011) [arXiv:1104.4590 [hep-ex]].
L. Fields et al. [MINERvA Collaboration], “Measurement of Muon Antineutrino Quasi- Elastic Scattering on a Hydrocarbon Target at Eν ∼ 3.5 GeV,” Phys. Rev. Lett. 111, 022501 (2013) [arXiv:1305.2234 [hep-ex]].
T. A. Aaltonen et al. [CDF and D0 Collaborations], “Combination of CDF and D0 W -Boson Mass Measurements,” Phys. Rev. D 88, 052018 (2013) [arXiv:1307.7627 [hep- ex]].
A. V. Kotwal, H. Schellman and J. Sekaric, “Review of Physics Results from the Tevatron: Electroweak Physics,” IJMPA, 30, 06 (2015). arXiv:1409.5163 [hep-ex].