Combined SLD Measurement of Ab at the Z0 Resonance using Various Techniques Page: 1 of 9
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Combined SLD Measurement of Ab at the Z0
Resonance using Various Techniques.*
The SLD Collaboration**
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 bb 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(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).
Paper Contributed to the International Europhysics Conference on High Energy
Physics (EPS-HEP 99), July 15-21, 1999, Tampere, Finland, Ref 6-473;
and the XIX International Symposium on Lepton and Photon Interactions
at High Energies, August 9-14, 1999, Stanford, CA, USA
*Work supported in part by the Department of Energy contract DE-AC03-76SF00515.
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Crawford, Glen D. Combined SLD Measurement of Ab at the Z0 Resonance using Various Techniques, report, July 27, 1999; Menlo Park, California. (https://digital.library.unt.edu/ark:/67531/metadc620132/m1/1/: accessed March 25, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.