Dynamical O(alpha_s) Effects in Forward-Backward Asymmetries of Heavy Quarks

Details Dynamical O(alpha_s) Effects in Forward-Backward Asymmetries of Heavy Quarks Dynamical O(alpha_s) Effects in Forward-Backward Asymmetries of Heavy Quarks

1996-03-19

arxiv.org/abs/hep-ph/9603344v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages (LaTeX), 7 figures + 4 tables (PostScript)

Scientific paper

We examine the O(alpha_s) forward-backward asymmetries for the production process e+ e- --> gamma,Z --> q qbar (g), tagging the outgoing heavy-quark jet at center-of-momentum energies off the Z-peak. The complicated analytic results are reduced to simple polynomial forms that provide excellent approximations. For charm and bottom quark, a full dynamical cancellation gives O(alpha_s) zeros in the forward-backward asymmetry close to the Z-peak. We conclude with a detailed numerical analysis of our results.

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