University of Minnesota
School of Physics & Astronomy
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Roger Rusack

Professor

PAN 430 (office), 624-2322
rusack @ physics.umn.edu • http://www.physics.umn.edu/~rusack/

RogerRusack.jpg

Positions currently held:
Co-convener of the CMS forward detector upgrade working group.
Principle Investigator for the Minnesota High Energy Physics Grant.

Research Areas
I carry out accelerator based experiments to understand the fundamental forces in Nature.

Current Research

My research is at the Large Hadron Collider (LHC) at CERN in Switzerland. I work with data collected at the CMS experiment, which is one of the two large general-purpose detectors at the LHC, the other being ATLAS. CMS has now collected 20 inverse fento-barns or data at 8 TeV; that combined with earlier data taken at & TeV has allowed us to observe a new state at 126 GeV, which we have now conclusively shown to be the Standard Model Higgs.The LHC is now shutdown for two years for an upgrade so that it can run at 14 TeV, with operations restarting at the end of 2014. In this new energy regime we will be searching for evidence of physical processes beyond the standard model.

In addition to studying the physics of high energy collisions, I have an interest in the problem of particle detection and the application of new emergent technologies to experimental high energy physics. One of my research interests in this area is the production of a new type of radiation tolerant optical modulator for high speed data links. In another area I am investigating the use of Silicon Carbide for the ultra-violet light detection.

Advisees and Collaborators

Alexey Finkel, Teaching Assistant
Peter Hansen, Research Assistant
Sean Kalafut, Teaching Assistant
Shih-Chuan Kao, Research Associate

Selected Publications

CMS Collaboration et al., Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC., Physics Letters B 716 (2012) 30-61.

M. Andreotti et al., Precision measurements of the total and partial widths of the ψ(2S) charmonium meson with a new complementary-scan technique in anti-p p annihilations., Phys. Lett. (2007)

K. Kodama et al., Identification of neutrino interactions using the DONUT spectrometer., Nucl Instr and Meth A516:21-33 (2004).

K. Kodama et al., Observation of Tau-Neutrimo Interactions., Phys. Lett. B 504 (2001) 218.

K. Dieters et al., Properties of the Avalanche Photodiodes for the CMS Electromagnetic Calorimeter., Nucl. Instr.. Meth. A453:223-226 (2000).Properties of the Avalanche Photodiodes for the CMS Electromagnetic Calorimeter.

Education

Ph.D. Physics, London university, 1979.
B.Sc. Physics, Liverpool University, 1974.