Bulletin of the American Physical Society
2008 APS April Meeting and HEDP/HEDLA Meeting
Volume 53, Number 5
Friday–Tuesday, April 11–15, 2008; St. Louis, Missouri
Session B2: Tevatron Physics |
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Sponsoring Units: DPF Chair: Pier Oddone, Fermi National Accelerator Laboratory Room: Hyatt Regency St. Louis Riverfront (formerly Adam's Mark Hotel), St. Louis D |
Saturday, April 12, 2008 10:45AM - 11:21AM |
B2.00001: Top and Electroweak Physics at the Tevatron Invited Speaker: Results on top and electroweak physics from the Tevatron Collider experiments, CDF and D\O\, are reviewed. These will include measurements of the top quark mass, top quark pair production cross-section, top properties and single top production. Electroweak measurements will include W mass, W and Z production properties and di-boson production. Latest results on precision measurements of the W mass and the top mass will be reviewed and placed in the context of indirect sensitivity to the Higgs mass. [Preview Abstract] |
Saturday, April 12, 2008 11:21AM - 11:57AM |
B2.00002: Standard Model Signals and New Physics Constraints Invited Speaker: Fermilab's Tevatron is the energy frontier machine for high energy physics experiments. It remains the best place to observe electroweak scale processes, both those that are expected in the context of the standard model and those arising from as yet undetermined new physics. The two general purpose experiments at the Tevatron, CDF and D0, have now collected and analyzed over 2 fb$^{-1}$ of data. We use a wide variety of final states to search directly for new particles and interactions, and to look for indirect evidence of new physics. This requires a precise understanding of standard model processes, many of which are interesting in their own right. Some low-rate standard model processes are just coming within reach of experimental observation. In this talk, I will summarize the challenges, analysis techniques, and results from CDF and D0 for a range of topics, including single top production, diboson production, signature-based searches, and constraints on supersymmetric models and other beyond the standard model physics. [Preview Abstract] |
Saturday, April 12, 2008 11:57AM - 12:33PM |
B2.00003: Searching for the Higgs at the Tevatron -- Present and Future Invited Speaker: The Tevatron has delivered more than 3.5 inverse femtobarns of proton-antiproton collisions to the DZero and CDF experiments. Using a wide variety of approaches, the two collaborations are analyzing these data to search for the Higgs boson. The search includes two different production mechanisms for the Higgs boson. In the low mass range, $M_H < \sim$135 GeV/$c^2$, the analyses search for the Higgs boson produced in association with either a W or Z boson. Identifying the vector boson, typically through one of its leptonic decays, greatly reduces background sources. However, to obtain the best sensitivity, these analyses must also rely on the fact that a Higgs boson in this mass range is expected to decay primarily to a bottom-antibottom quark pair. In the higher mass range, 130 $< M_H <$ 200 GeV/$c^2$, the analyses search for the Higgs Boson produce singly and decaying to a pair of vector bosons, primarily WW. This talk will review the analysis techniques such as event selection, b-quark tagging, advanced analysis approaches, and the unique challenges of the Tevatron Higgs boson search. The talk will present the current production cross section limits, including the combined limits between different search channels and between CDF and DZero results. Finally, it will discuss the prospects for future limits based on projected data sample sizes and anticipated improvement to the search techniques. [Preview Abstract] |
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