The Anomalous Chromomagnetic Dipole Moment of the Top Quark

1997/09/26 by R. Martı́nez, R. Martinez, J.-Alexis Rodrı́guez +6
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9709478

Latex file, 15 pages, 5 ps figures

arxiv created 1997/09/26 · openalex publication_date 1997/09/26 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We calculate the one loop corrections to the chromomagnetic dipole moment of the top quark in the framework of the Standard Model, the two Higgs doublet model and the Minimal Supersymmetric Standard Model. In the Standard Model we consider the QCD and the electroweak corrections generated by gluon and Higgs boson exchanges, respectively. In the Minimal Supersymmetric Standard Model, we calculate the SUSY- QCD corrections, including the mixing effects between the stop coming from the left- and right-handed sectors. We obtain that the Standard Model contribution is of the order of -0.004< delta kappa_g^t < -0.001, and the values for diferents scenarios are of the order of -0.001 < δκ_g^t < -0.01.

Related

• Chromomagnetic dipole moment of the top quark in the Bestest Little Higgs model
• Two-Loop Contributions to the Anomalous Chromomagnetic Dipole Moment of the Top Quark in Two-Higgs-Doublet Models
• Top anomalous chromomagnetic dipole moment in a two Higgs doublet model
• Flavor Enhanced Chromomagnetic Dipole Moment in the Bestest Little Higgs Framework
• Probing top-quark chromomagnetic dipole moment at next-to-leading order in QCD