Professor Olive’s research is in the area of particle physics and cosmology. The main topics on which he works in are: big bang nucleosynthesis, which is an explanation of the origin of the light element isotopes through 7Li; particle dark matter; big bang baryogenesis, which is an explanation of the matter-antimatter asymmetry observed in nature; and inflation which is a theory constructed to resolve many outstanding problems in standard cosmology.
Physics of Particles
Welcome to the Elementary Particle Physics Group at the University of Minnesota!
Elementary particle physics, or high energy physics (HEP), is the study of the fundamental building blocks of the universe. Why is our universe composed of matter rather than antimatter? Why do seemingly superfluous heavier relatives accompany the quarks and the electrons that we need to explain ordinary matter? Can we reconstruct the processes of the Big Bang and understand how the universe evolved into its present state? These are the questions that motivate the work of the faculty and graduate students who are engaged in HEP research.
The experimental particle physics group at the University of Minnesota is engaged on numerous fronts in this exciting worldwide campaign. Our group is led by nine professors and includes twelve postdoctoral research associates, eighteen graduate students, numerous undergraduate students, and a sizable technical staff. Their tools are wonderfully sophisticated (and expensive!) - particle accelerators, laboratories located deep underground, amazingly complex detectors, and powerful computer systems that process massive data samples.
The theory program has a strong phenomological component, focusing on heavy quark physics and quantum chromodynamics, with ties to the experimental group. There is also an interest in the cosmological aspects of supersymmetric gauge theories and Big Bang Nucleosythesis as a tool for discovering dark matter. Minnesota theorists have contributed significantly to a totally new direction, brane world scenarios, which predict that the universe is confined to a brane (domain wall), embedded in a higher dimensional space-time.
Elementary Particle Physics Faculty
|Dan Cronin-Hennessy||CP-Violation, quark- and lepton-mixing matrices.
|Priscilla Cushman||Dark matter searches, novel particle detectors, collaborative work toward a Center for Underground Science through the DUSEL initiative|
|Tony Gherghetta||Physics beyond the standard model; LHC phenomenology; Supersymmetry; Extra dimensions; AdS/CFT and holography.
|Kenneth Heller||Research in high energy particle physics currently focuses on neutrino oscillations as measured in long baseline accelerator experiments.
Research in physics education focuses the use, learning, and teaching of problem solving in physics.|
|Yuichi Kubota||I am interested in finding clues to the future theory of particles which will extend our current understanding. So far from three years of data collection (2010-2012) and analysis, evidence for neither SUSY nor extra dimension has been found.|
|Vuk Mandic||Gravitational Wave Physics, Observational Cosmology, Early Universe Physics|
|Jeremiah Mans||Hadron collider physics at the high energy frontier, trigger and data acquisition electronics.|
|Marvin Marshak||Properties of fundamental interactions, including measurement of neutrino mass, tests of stability of matter (proton decay); high energy cosmic ray physics and astrophysics.|
|Keith Olive||Cosmology/Particle Physics|
|Gregory Pawloski||Neutrino Oscillations, Matter-Antimatter Asymmetries|
|Marco Peloso||Astroparticle physics, Inflation, Cosmology of extra-dimensions, Physics beyond the Standard Model|
|Serge Rudaz||Unified theories of elementary particle interactions and their phenomenology, applications to cosmology and astroparticle physics;|
|Roger Rusack||I carry out accelerator based experiments to understand the fundamental forces in Nature.|
|Mikhail Shifman||Gauge field theories at strong coupling and supersymmetric field theories|
|Arkady Vainshtein||Theory of fundamental interactions: gauge theories, supersymmetry.
Operator product expansion and its applications.|
|Mikhail Voloshin||Properties of elementary particles. Gauge theories of strong, weak, and
electromagnetic interactions. Non-perturbative dynamics of quantum
|Thomas Walsh||Phenomenology of Quantum Chromodynamics and the Standard Model; Lattice Gauge Theory; Astroparticle Physics.|
|Stephen Gasiorowicz||My recent research work has concentrated around flux-tube models of hadrons that mimic, through boundary conditions, the flux-confinement believed to characterize QCD.|
|Earl Peterson||My research interests are centered on experimental tests of grand unified theories, the neutrino sector of the standard model and high-energy cosmic-ray observations. |
|Keith Ruddick||High energy particle interactions; nucleon decay; neutrino interactions;
high energy cosmic rays; detector development.|
Elementary Particle Physics Research Staff
Elementary Particle Physics Graduate Students