2007- 2013 Associate Professor
2000-2007 Assistant Professor
B.A. 1989 University of Minnesota, Morris
Ph.D. 1994 Purdue University
RESEARCH DESCRIPTIONMy research in experimental particle physics has been in a number of different areas. I was involved in the BaBar experiment at the Stanford Linear Accelerating Center located near the Stanford campus. I was involved in building and commissioning the silicon vertex tracker (Picture 1) and Picture 2 (That's me on the left) for BaBar. The BaBar experiment has now shut down after a wonderful run and after many interesting physics papers. My recent primary physics interest is working on B physics in order to better understand CP violation. I have also worked on many analyses studying QCD at the D0 experiment at Fermi Lab. These analyses were designed to look for quark sub-structure and to test the current theoretical understanding of QCD. Over the past few years I have been working on the D0 detector. D0 is probing many interesting physics analyses. I have been involved in a number of interesting measurements at D0. These include the observation of the X(3872) , a measurement of Bs mixing and a discovery of a new particle, the cascade_b . See an article on the cascade_b in Fermilab Today . To see more about the cascade_b see our paper and a power point presentation by one of my colleagues. Shortly after the discovery of the cascade_b, I was involved in the discovery of the Omega_b at D0. This result is currently controversial since the CDF experiment at Fermilab has also observed the Omega_b but with a slightly different mass. Further analysis will be required to resolve this discrepancy. Most recently I have been involved in trying to measure the CP violating phase, phi_s, in Bs decays. Some D0 measurements show a larger value than expected from the Standard Model and may indicate some previously unknown physics. By including a second analysis, it is hoped the uncertainties can be reduced to show a significant deviation from the Standard Model. I have already recently completed an analysis on studying Bs -> J/Psi f2'(1525) which hopefully can also be used to study CP violation in the future.
I am also working on the ATLAS experiment at the LHC . The ATLAS experiment began taking data in early 2010 at the world's highest energy of 7 TeV. We hope to find evidence of the Higgs Boson and perhaps even Super Symmetry by studying the data. I am currently studying the top quark cross section and searching for Supersymmetry. With the D0 experiment no longer running and the LHC now running at the energy frontier of 8 TeV, the next few years will be very exciting to see what is discovered.
For a list of my publications see: Run 1 and Run 2
Last updated June, 2012