Author(s): The SLD Collaboration Presenting author: Tracy Usher Corresponding author's e-mail: usher@slac.stanford.edu Title of the presentation: B-Bbar Energy Correlations in Z^0->bb Decays Link to the full paper: Session of 1st preference: 1-Hard High Energy QCD and Structure Functions Session of 2nd preference: 4-Heavy Flavor   Abstract   We present a preliminary first measurement of the correlation between the energies of the leading B hadrons produced in Z^0->b bbar decays. The measurement was performed using hadronic Z^0 events recorded in the SLD experiment at SLAC between 1996 and 1998. The small and stable SLC beam spot and the CCD-based vertex detector were used to reconstruct B decay vertices with high efficiency and purity. They also enabled us to measure B hadron energies with good efficiency and resolution over the full kinematic range. In events with two tagged B hadrons, we calculated moments of the 2D energy distribution and compared the measured correlation with a leading order QCD calculation and with the Peterson fragmentation model.