The top quark chromomagnetic dipole moment in the SM

Authors

DOI:

https://doi.org/10.31349/SuplRevMexFis.4.021122

Keywords:

Quantum chromodynamics, Electric and magnetic moments, Top quark, Gluons

Abstract

We present our results on the top quark chromomagnetic dipole moment, which is based on the 5-dimension effective Lagrangian operator that characterizes the chromodipolar vertex functions gtt and ggtt. The chromomagnetic dipole mu_t is derived via quantum fluctuation at the 1-loop level. We evaluate µˆt(s) as a function of the energy scale s=+-E2, for E=[10,1000] GeV. In particular we focus on the conventional high-energy scale E=mZ, analogously as with alphas(mZ2) and sW(mZ2). The spacelike evaluation matches quite well with the experimental central value, while the timelike case deviates from it.

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Published

2023-09-18

How to Cite

1.
Montaño-Domínguez J, Ramírez-Zavaleta FI, Tututi ES, Urquiza-Trejo E. The top quark chromomagnetic dipole moment in the SM. Supl. Rev. Mex. Fis. [Internet]. 2023 Sep. 18 [cited 2024 May 28];4(2):021122 1-5. Available from: https://rmf.smf.mx/ojs/index.php/rmf-s/article/view/7123