Measurement of the forward backward asymmetry of c and b quarks at the Z pole using reconstructed D mesons

Details Measurement of the forward backward asymmetry of c and b quarks at the Z pole using reconstructed D mesons Measurement of the forward backward asymmetry of c and b quarks at the Z pole using reconstructed D mesons

1999-03-31

arxiv.org/abs/hep-ex/9903074v1

Eur.Phys.J.C10:219-237,1999

Physics

High Energy Physics

High Energy Physics - Experiment

Scientific paper

10.1007/s100520050584

A measurement of the forward--backward asymmetry of $e^{+}e^{-} \to c\bar{c}$ and $e^{+}e^{-} \to b\bar{b}$ on the $Z$ resonance is performed using about 3.5 million hadronic $Z$ decays collected by the DELPHI detector at LEP in the years 1992 to 1995. The heavy quark is tagged by the exclusive reconstruction of several $D$ meson decay modes. The forward--backward asymmetries for $c$ and $b$ quarks at the $Z$ resonance are determined to be: \[ \renewcommand{\arraystretch}{1.6} \begin{array}{rcr@{}l} \Afbc(\sqrt{s} = 91.235 {\rm GeV}) &=& &0.0659 \pm 0.0094 (stat) \pm 0.0035 (syst) \Afbb (\sqrt{s} = 91.235 {\rm GeV}) &=& &0.0762 \pm 0.0194 (stat) \pm 0.0085 (syst) \Afbc(\sqrt{s} = 89.434 {\rm GeV}) &=&-&0.0496 \pm 0.0368 (stat) \pm 0.0053 (syst) \Afbb(\sqrt{s} = 89.434 {\rm GeV}) &=& &0.0567 \pm 0.0756 (stat) \pm 0.0117 (syst) \Afbc(\sqrt{s} = 92.990 {\rm GeV}) &=& &0.1180 \pm 0.0318 (stat) \pm 0.0062 (syst) \Afbb(\sqrt{s} = 92.990 {\rm GeV}) &=& &0.0882 \pm 0.0633 (stat) \pm 0.0122 (syst) \end{array} \] The combination of these results leads to an effective electroweak mixing angle of: SINEFF = 0.2332 \pm 0.0016

Affiliated with

Also associated with

No associations

Rating

Measurement of the forward backward asymmetry of c and b quarks at the Z pole using reconstructed D mesons 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 Measurement of the forward backward asymmetry of c and b quarks at the Z pole using reconstructed D mesons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurement of the forward backward asymmetry of c and b quarks at the Z pole using reconstructed D mesons will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-487030