Heavy Quark Physics from SLD
نویسنده
چکیده
This report covers preliminary measurements from SLD on heavy quark production at the Zu, using 150.000 hadronic Zu decays accumulated during the 1993-1995 runs. A measurement of Rt, with a lifetime double tag is presented. The high electron beam polarization of the SLC is employed in the direct measurement of the parity-violating parameters At, and Ac by use of the left-right forward-backward asymmetry. The lifetimes of B+ and B” mesons have been measured by two analyses. The first identifies semileptonic decays of B mesons with high (p,pt) leptons; the second analysis isolates a sample of B meson decays with a twodimensional impact parameter tag and reconstructs the decay length and charge using a topological vertex reconstruction method. *This work supported by the Department of Energy, contract DE-AC03-76SFOO515 (SLAC). @1995 by Robert Messner.
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