Thursday, November 9, 2006, 3:00 pm — Small Seminar Room, Bldg. 510
Leptons produced at the energy frontier have long provided rich opportunities for discovery and measurement. Di-lepton decays of the top quark, the most massive observed fundamental particle, are a sensitive laboratory for testing the standard model. A study of top di-lepton decays in 1/fb of data at CDF will be presented, including a measurement of the cross-section, and focussing on a measurement of the top quark mass. A measurement of the top mass in di-lepton decays is a stringent test of the standard model top quark hypothesis and provides an important contribution to our knowledge of the top mass, which constrains the mass of the standard model Higgs and many new theories. The kinematics of the di-lepton channel make it especially challenging for mass measurements and especially ripe for the application of sophisticated methods. A discussion of the observed events will be presented, including the most precise measurement of the top quark mass in these decays.
Hosted by: Kyle Cranmer
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