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Title: Combined SLD Measurement of Ab at the Z0 Resonance using Various Techniques

Technical Report ·
DOI:https://doi.org/10.2172/10212· OSTI ID:10212

We present a new preliminary combination of measurements of the parity-violation parameter Ab made by the SLD collaboration using various experimental techniques. The techniques differ in detail, but in general a sample of b anti-b events is selected or enhanced by using the topologically reconstructed mass of the separated vertices formed by decaying B hadrons. The direction of the b(anti-b) quark is signed by one of four final state tags: jet charge, vertex charge, leptons, or identified K= from the b vertex. We account for statistical and systematic correlations between the four analyses to arrive at our combined result: Ab = 0.905 ± 0.017(stat) ± 0.020(syst).

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
ER
DOE Contract Number:
AC03-76SF00515
OSTI ID:
10212
Report Number(s):
SLAC-PUB-8211; ON: DE00010212
Country of Publication:
United States
Language:
English

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