Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2000-05-15
Phys.Lett.B485:71-84,2000
Physics
High Energy Physics
High Energy Physics - Experiment
Scientific paper
10.1016/S0370-2693(00)00676-6
The measurements of Rb = sigma(e+e- -> bb~)/sigma(e+e- -> qq~) and of the b quark forward-backward charge asymmetry, A^b_fb, at centre-of-mass energies above the Z pole are described. The measurement of Rb is performed at \root{s} between 130 and 189 GeV using a b-tagging method that exploits the relatively large decay length of b-hadrons. The measurement of A^b_fb is performed using the large statistics event sample collected at \root{s}=189 GeV with a lepton-tag analysis based on the selection of prompt muons and electrons. The results at \root{s}=189 GeV are: Rb = 0.163 +/- 0.013 (stat.) +/- 0.005 (syst.), A^b_fb = 0.61 +/- 0.18 (stat.) +/- 0.09 (syst.).
No associations
LandOfFree
Measurements of the bb~ production cross section and forward backward asymmetry at centre-of-mass energies above the Z pole at LEP does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Measurements of the bb~ production cross section and forward backward asymmetry at centre-of-mass energies above the Z pole at LEP, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurements of the bb~ production cross section and forward backward asymmetry at centre-of-mass energies above the Z pole at LEP will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-103059