Chromomagnetic Dipole Moment of the Top Quark Revisited

Details Chromomagnetic Dipole Moment of the Top Quark Revisited Chromomagnetic Dipole Moment of the Top Quark Revisited

2007-01-12

arxiv.org/abs/hep-ph/0701098v2

Eur.Phys.J.C53:221-230,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages, 5 figures, Update

Scientific paper

10.1140/epjc/s10052-007-0457-6

We study the complete one-loop contributions to the chromagnetic dipole moment $\Delta\kappa$ of the top quark in the Standard Model, two Higgs doublet models, topcolor assited technicolor models (TC2), 331 models and extended models with a single extra dimension. We find that the SM predicts $\Delta\kappa = - 0.056$ and that the predictions of the other models are also consitent with the constraints imposed on $\Delta\kappa$ by low-energy precision measurements.

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