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Chromomagnetic Dipole Moment of the Top Quark Revisited

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arxiv hep-ph/0701098 v2 pith:6IUUIB63 submitted 2007-01-12 hep-ph

classification hep-ph
keywords modelsdeltakappadipolemomentquarkassitedchromagnetic
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

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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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Constraining ALP-Top Interaction from the Chromoelectric Dipole Moment of the Top Quark

    hep-ph 2025-07 conditional novelty 6.0 of 10

    The paper derives the one- and two-loop top quark CEDM induced by a CP-violating ALP at q^2 = m_t^2 and uses it to set new bounds on the ALP-top coupling, with the neutron EDM giving the strongest of the three new limits.

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