Abstract:

Measurements of the top quark mass and total decay width using the CDF detector at Run II of the Tevatron are presented. Both analyses use the template method, in which the overconstrained kinematics of the lepton+jets channel of the ttbar system are used to measure a single quantity, the reconstructed top quark mass, that is strongly correlated with the true top quark mass. In the mass measurement, the dijet mass is also used to constrain in situ the uncertain jet energy scale in the detector, and two-dimensional probability functions are derived using a kernel density estimate- based machinery. The top quark width measurement uses one-dimensional parameterizations of the reconstructed top quark mass to set the world's first direct upper limit on the total top quark width.