Bulletin of the American Physical Society
2005 APS April Meeting
Saturday–Tuesday, April 16–19, 2005; Tampa, FL
Session J1: Top Quarks |
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Sponsoring Units: DPF Chair: Daniela Bortoletto, Purdue University Room: Marriott Tampa Waterside Grand Salon E |
Sunday, April 17, 2005 10:45AM - 11:21AM |
J1.00001: Top Quark Properties at the TeVatron Invited Speaker: The top quark is the least understood of the quarks and is a main focus of research for experiments at the TeVatron proton-anti-proton collider. The top quark plays an important role as fundamental parameter in the Standard Model as well as in its extensions. Moreover, its large mass has led to speculation that its interactions might be sensitive to the mechanism of electroweak symmetry breaking and new physics at higher energy scales. This talk will present recent top quark physics results from the CDF and DZero collaborations. A review of the measurements of the top quark mass and their effect on the prediction of the Higgs mass will be shown, as well as searches for new physics by studying production and decay couplings of top quarks. Also covered will be non-SM resonance states examining the top -antitop invariant mass spectrum. [Preview Abstract] |
Sunday, April 17, 2005 11:21AM - 11:57AM |
J1.00002: Top quark production and decay properties in proton-antiproton collisions Invited Speaker: Detailed studies of top quark production and decay properties provide direct tests of the Standard Model. Top quarks are routinely produced at the Fermilab Tevatron collider where protons and antiprotons are made to collide at a center-of-mass energy of approximately 2 TeV. Recent results on the top quark pair production cross-section, decay properties and search for single top production from the CDF and DZero collaborations will be presented. [Preview Abstract] |
Sunday, April 17, 2005 11:57AM - 12:33PM |
J1.00003: What do we believe the top quark to be in the Standard Model? Invited Speaker: What do we believe the top quark to be in the Standard Model? Is the new particle discovered in 1994 the top quark? How much do we actually know about it? Ten years later, these questions are still nagging us. While we have an expectation for what the top quark should be, and no evidence that it's anything other than that, we know surprisingly little about this heavy fermion. Some models e.g. predict that it is actually charge -4/3 instead of +2/3, which is not yet measured. Other models propose that there could be some new state contaminating the top sample. I highlight the prospects for pulling back the curtain on the top quark in Run II of the Fermilab Tevatron. [Preview Abstract] |
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