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Our physics activities focus on searches for new physics, including initial including initial measurements of the top quark and other SM processes to validate the physics signature reconstruction. Searches are underway for gluinos which have come to rest in the calorimeter and decay during empty bunch crossings, excess like-sign leptons, a 4th generation quark, R-Parity violating Supersymmetry, light pseudoscalar Higgs in the NMSSM, long-lived particles in Hidden Valley models, and "lepton-jets". Our SUSY Our SUSY search efforts are concentrating on the bthe b+MET+jets final-state, which also involves the study of top of top quark pair production as validatation for the for the b+MET reconstruction and estimation and estimation of a major background to SUSY searches. Many tools are developed for use in these analyses, and for use by the collaboration as a whole, such as an algorithm which matches clusters of tracks with jets in the calorimeter, studies of jet calibration, b-tagging, b-jet triggering, and b/c-jet separation. SLAC is a Tier2 computing facility, and provides strong support for data analysis and simulation efforts.
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The group plays a major role in the operation of the Pixel detector, building on SLAC's long experience in silicon detector technology. We are also very involved in the triggers and data-aquisition (TDAQ) system, working on the TDAQ software and infrastructure, as well as high-level triggers and online beam spot. And we contribute to the simulation software, with expertise in GEANT4 modeling. SLAC is also proposing major roles in several projects that will address the planned ATLAS upgrades, including the pixel B-layer pixel insertion Layer Insertion upgrade and TDAQ upgrades based on cutting-edge serial I/O + FPGA technology. 
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