Combined SLD Measurement of Ab at the Z Resonance using Various Techniques
High Energy Physics - Experiment
2007-05-23 v1
Abstract
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(bbar) 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).
Cite
@article{arxiv.hep-ex/9907063,
title = {Combined SLD Measurement of Ab at the Z Resonance using Various Techniques},
author = {The SLD Collaboration and K. Abe},
journal= {arXiv preprint arXiv:hep-ex/9907063},
year = {2007}
}
Comments
8 pages, 0 figures. Paper submitted to EPS-HEP99 and Lepton-Photon '99