High Energy Physics

Table of Contents


High energy physics (also known as particle physics) is the study of the subatomic elements of matter and radiation, and their interactions.

At the University of Colorado at Boulder Department of Physics, research in high energy physics is conducted by the High Energy Physics Group. Their research interests include both experimental and theoretical high energy physics.

The experimentalists work in collaboration with such groups as T2K and Compact Muon Solenoid. They conduct research in such places as the European Organization for Nuclear Research (CERN), Fermi National Laboratory (FNAL) and the J-PARC.

The major research areas of the theory group include string theory and quantum gravity, lattice QCD with an emphasis on issues associated with chiral symmetry, and beyond-standard model phenomenology and the origin of fermion masses.

Theoretical Research

The theoretical high energy physics research group explores the mathematical and theoretical nature of high-energy physics, including: string theory and quantum gravity, lattice QCD and lattice studies of related systems as beyond Standard Model candidates, and phenomenology associated with potential new physics at the Large Hadron Collider.

Senarath de Alwis

I'm interested in String theory, Supersymmetry breaking and Cosmology. My main interest at this point is in understanding beyond the standard model physics and cosmology from the vantage point of string theory. The latter is the only consistent theory of all the fundamental interactions that we have today and I believe it is important to understand its consequences for both TeV scale particle physics phenomenology (soon to be explored at the LHC) and cosmology.

Tom DeGrand

I study the properties of strongly-interacting systems, most of which appear in the context of elementary particle physics, with a combination of analytic and numerical techniques. I am interested in the physics of strongly interacting quantum fields. The prototype of such system is Quantum Chromodynamics, the theory of quarks and gluons which describes the strong nuclear force. Recently, I have become more interested in similar systems, which might be candidates for new beyond Standard Model physics

Oliver DeWolfe

My research interests are in string theory and its application to phenomenology and cosmology.

Anna Hasenfratz

I am interested in the properties of quantum field theoretical models. My research concentrates on the non-perturbative properties quantum field theories, mainly QCD. Non-perturbative studies frequently require computer simulations but the emphasis is always on the physical picture and understanding of the physical phenomena.

K.T. Mahanthappa

I am interested in grand unification theories, fermion mixings and masses including charge fermions and neutrinos. My main motivation is to reduce the number of parameters needed in the standard model with the inclusion of massive neutrinos.

Ethan Neil

My research interests are in physics beyond the standard model, particularly its signatures in collider and dark matter experiments, and more generally in the physics of strongly-coupled elementary particles, which I study numerically using large-scale computing. My particular interests include composite Higgs and composite dark-matter models, precision calculations of heavy-quark properties (which are an important input to experimental searches for new physics), and the dynamics of many-fermion gauge theories.

Experimental Research

The high energy experimental group track observable phenomena in order to test theories related to their field. By working with international organizations, such as the CMS (Compact Muon Solenoid)  experiment in the Large Hadron Collider at CERN in Geneva, Switzerland, as well as the  the T2K experiment in Gifu Prefecture, Japan, our researchers are connected to a global search for fascinating new discoveries in the high energy field.

John Cumalat

I have broad interests in particle physics. I am presently involved in the CMS experiment at the Large Hadron Collider studying the possibility of observing Zprime decays to tau tau. In addition I am involved in generic research involving the use of diamonds as a particle sensor in future experiments in the RD42 Collaboration at CERN and in a CMS pixel upgrade proposal using the Fermilab test beams..

Bill Ford

I am interested in in weak interaction properties of leptons and quarks as measured by neutrino interactions, and by the lifetimes, branching fractions, and decay dynamics of weakly decaying particles. I currently collaborate in the BaBar experiment operating at the SLAC Nathional Accelerator Laboratory in California, and in the CMS experiment at the European Organization for Nuclear Research (CERN) laboratory in Switzerland.

James Smith

My research interests are in experimental high energy physics, specifically decays of B mesons and search for supersymmetric particles.

Uriel Nauenberg

I am interested in the search for Supersymmetric Particles. That is my effort at the CMS Experiment. I am also working on the study of B decays in the BaBar experiment. I have been working on the design of the detectors associated with International Linear Collider.

Alysia Marino

I am involved with the T2K long-baseline neutrino oscillation experiment, under construction in Japan. I have also recently joined the effort to design and construct a future Long-Baseline Neutrino Experiment in the US.

Kevin Stenson

My research interests include the investigation of the properties of charm and beauty quarks as part of the E791, FOCUS, and BTeV collaborations. I also work on the CMS experiment at the LHC at CERN, investigating rare B decays.

Steve Wagner

My current primary research interest is the development of radiation-hard sensors (diamond, very-thin silicon) and electronics for upgrades to the CMS pixel tracking detector. I'm also interested in searches dark-matter at CMS. Prior to coming to CU I worked at SLAC for 20 years on electron-positron experiments (BaBar, SLD, Mark II), where I studied the electroweak properties of heavy quarks, and on electron-positron
linear-collider accelerator projects (FFTB, SLC).

Eric Zimmerman

My field of interest is experimental particle physics, and my research centers on two neutrino experiments: E898 (BooNE) at Fermilab, and T2K at J-PARC.