Remark on CP-violating Polarization Asymmetry of tt-bar via Anomalous Couplings to gamma and Z

Details Remark on CP-violating Polarization Asymmetry of tt-bar via Anomalous Couplings to gamma and Z Remark on CP-violating Polarization Asymmetry of tt-bar via Anomalous Couplings to gamma and Z

1998-10-27

arxiv.org/abs/hep-ph/9810490v1

Phys.Rev. D59 (1999) 037503

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, Latex, 2 figures (via epsf.tex), to appear in Phys. Rev. D (Brief Report)

Scientific paper

10.1103/PhysRevD.59.037503

We calculate the CP-violating polarization asymmetry of tt-bar, delta =[
sigma(ee-bar --> t(-)t-bar(-))-sigma(ee-bar --> t(+)t-bar(+)) ]/ sigma(ee-bar
--> tt-bar), for the most general tt-bar gamma/Z couplings without dropping any
non-standard contribution. We find that one term which is usually neglected
increases with s and will eventually become non-negligible at very high energy.

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