Measurement of the forward-backward asymmetries for charm- and bottom-quark pair productions at $<\sqrt{s}>$=58GeV with electron tagging

Details Measurement of the forward-backward asymmetries for charm- and bottom-quark pair productions at $<\sqrt{s}>$=58GeV with electron tagging Measurement of the forward-backward asymmetries for charm- and bottom-quark pair productions at $<\sqrt{s}>$=58GeV with electron tagging

1994-12-19

arxiv.org/abs/hep-ex/9412012v1

Phys.Lett.B340:135-142,1994

Physics

High Energy Physics

High Energy Physics - Experiment

19 pages, Latex format (article), 5 figures included. to be published in Phys. Lett. B

Scientific paper

10.1016/0370-2693(94)91310-2

We have measured, with electron tagging, the forward-backward asymmetries of charm- and bottom-quark pair productions at $<\sqrt{s} >$=58.01GeV, based on 23,783 hadronic events selected from a data sample of 197pb$^{-1}$ taken with the TOPAZ detector at TRISTAN. The measured forward-backward asymmetries are $A_{FB}^c = -0.49 \pm 0.20(stat.) \pm 0.08 (sys.)$ and $A_{FB}^b = -0.64 \pm 0.35(stat.) \pm 0.13 (sys.)$, which are consistent with the standard model predictions.

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