Title: Measurement of B-hadron Masses at CDF II

Abstract:

At the Tevatron all species of B-hadrons are produced. Using data from the CDF II experiment, B-hadrons are reconstructed in the exclusive decay modes. The momentum scale for Run II is established, and an unbinned likelihood method used to determine the hadron masses. The current world's best measurements of the B_s and Lambda_b masses are presented.