Constraint of the magnetic moment of the top quark

Abstract

We derive a bound on the magnetic dipole moment of the top quark in the context of the effective Lagrangian approach by using the values of the ratio $R_b={\Gamma }_b/{\Gamma }_h$, $R_l={\Gamma }_h/{\Gamma }_l$ and ${\Gamma }_Z$. We found that the oblique corrections are more sensible than the vertex ones for this moment.

6 pages, 3 figures, RevTeX