Chromomagnetic dipole moment of the top quark revisited |
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| Authors: | R. Martínez M.A. Pérez N. Poveda |
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| Affiliation: | (1) Departamento de Física, Universidad Nacional, Bogotá, Colombia;(2) Departamento de Física, Cinvestav – IPN, Av. IPN No. 2508, Mérida, Mexico;(3) Departamento de Física, Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia |
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| Abstract: | ![]()
We study the complete one-loop contributions to the chromagnetic dipole moment Δκ 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 Δκ=-0.056 and the predictions of the other models are also consistent with the constraints imposed on Δκ by low-energy precision measurements. |
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