Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
1997-10-17
Physics
High Energy Physics
High Energy Physics - Experiment
16 pages, Latex, 14 embedded ps/eps figures, uses epsfig.sty, invited talk at Beyond the Standard Model V, Balholm, Norway, Ap
Scientific paper
10.1063/1.54489
Key electroweak measurements performed by the SLD collaboration at the SLC are described and recent results given. The left-right cross-section asymmetry, $A_{LR}$, has been updated to include the 1996 data. It remains the single most precise measurement of $\sin^2\theta_W^{eff}$, and it is compared to the LEP results. The polarized differential cross section for $b$-quarks is measured and is used to perform a unique direct measurement of the parity violation parameter for $b$ quarks, $A_b$. The excellent capability to perform secondary vertexing at SLC with CCD-based vertex detectors is described, including first physics results with the new detector VXD3. The vertexing is used to full advantage to make a highly pure B tag to measure the fraction of hadronic $Z^0$ decays going to $b$ quarks, $R_b$. The vertexing, in combination with electron-beam polarization, is used to measure $B_d^0$ mixing. The prospects for making a $B_s^0$ mixing measurement are excellent given good SLC performance in the upcoming SLC run(s).
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