I. Joseph Kroll

I. Joseph Kroll
Standing Faculty


Research Areas: Experimental Particle Physics, Collider Physics



  • Professor, University of Pennsylvania, 2006 to present
  • Associate Professor (with tenure), Univ. of Pennsylvania, 2001-2006
  • Assistant Professor, University of Pennsylvania, 1997-2001
  • Scientific Associate, Wilson Fellow, Fermilab, 1993-1997
  • Research Associate, Enrico Fermi Institute, Univ. of Chicago, 1989-1992
  • Research Assistant, Harvard University, 1984-1989
  • Teaching Assistant, Harvard University, 1983
  • Research Assistant, University of California, Los Angeles, 1982-1983

Honors include:

  • Fellow of the American Association for the Advancement of Science, 2021
  • Fellow of the American Physical Society, 2009
  • Outstanding Junior Investigator, Department of Energy, 1998-2001
  • Wilson Fellow, Fermilab, 1993-1997
  • Department Citation, Physics, University of California, Berkeley, 1982
  • Phi Beta Kappa, University of California, Berkeley, 1982 



Harvard University, Ph.D. in Physics, 1989 (advisor: Prof. Carlo Rubbia)
University of California, Berkeley, B.A. in Physics, summa cum laude, 1982

Research Interests

My research is in accelerator-based experimental particle physics. I have worked on the study of proton-proton collisions, proton-antiproton collisions and electron-positron collisions. My interests have spanned precision tests of the electroweak model; flavor physics studies, particularly the physics of hadrons containing b quarks; and the search the Higgs boson and particles not contained in the standard model of particle physics. I have been a member of the following experimental collaborations: ATLAS (CERN Large Hadron Collider) 2007 to present; CDF (Fermilab Tevatron) 1993 to present; OPAL (CERN LEP Collider) 1989-1993; UA1 (CERN SPS Collider) 1984-1989; R608 (CERN Intersecting Storage Rings) 1982-1983

Courses Taught

Phys 140/150: Principles of Physics I: Mechanics and Wave Motion

Phys 141/151: Principles of Physics II: Electromagnetism and Radiation

Phys 364: Laboratory Electronics

Phys 414: Laboratory in Modern Physics


Fellow of the American Physical Society (APS), Division of Particles and Fields (DPF)

Fellow of the American Association for the Advancement of Science (AAAS)

CV (file)