We present a direct measurement of the parity-violating parameter A b by analyzing the left-right forward-backward asymmetry of b quarks in e + e ; !Z 0 ! bb. The SLD experiment observes hadronic decays of Z 0 bosons produced at resonance in collisions of longitudinally polarized electrons and unpolarized positrons at the SLC. Heavy avor decays of the Z 0 are identiied by using the topologicall...

Organizers Ann English, Department of Chemistry and Biochemistry, Concordia University, Montreal, H3G 1M8, Canada; Phone: 514-848-3338; Fax: 514-848-2868; Email: [email protected] Ichiro Okura, Department of Bioengineering, Tokyo Institute of Technology, Yokohama, Japan; Phone: 045-924-5752; Fax: 045-924-5778 Shigenobu Yano, Department of Chemistry, Nara Women’s University, Nara, Japan;...