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 Dec. 4];4(2):021122 1-5. Available from: https://rmf.smf.mx/ojs/index.php/rmf-s/article/view/7123

Issue

Vol. 4 No. 2 (2023): Suplemento de la Revista Mexicana de Física. XVIII Mexican Workshop on Particles and Fields 2022 and XXXVI Annual Meeting of the Division of Particles and Fields 2022

Section

11 XVIII Mexican Workshop on Particles and Fields 2022 and XXXVI Annual Meeting

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Copyright (c) 2023 Javier Montaño-Domínguez, Fernando I. Ramírez-Zavaleta, Eduardo S. Tututi, Everardo Urquiza-Trejo

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