Journal
EUROPEAN PHYSICAL JOURNAL C
Volume 53, Issue 2, Pages 221-230Publisher
SPRINGER
DOI: 10.1140/epjc/s10052-007-0457-6
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We study the complete one-loop contributions to the chromagnetic dipole moment Delta k of the top quark in the standard model, two Higgs doublet models, topcolor assisted technicolor models, 331 models and extended models with a single extra dimension. We find that the SM predicts Delta k =-0.056 and the predictions of the other models are also consistent with the constraints imposed on Delta k by low-energy precision measurements.
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