How much space does the top quark occuppy?

In the standard model, all particles are considered to be point-like. What would happen if the top quark has an anomalous radius $(R_{t})$ and magnetic dipole moment $(\kappa_{V})$? In this analysis generator-level simulations are used to define experimental observables sensitive to these two parameters and a statistical analysis is performed to set limits on their contributions. Using up to 4 fb$^{-1}$ of proton-proton collision data acquired by CMS in 2016 we expect to exclude $R_{t}<0.001$ TeV$^{-1}$ at the 95% CL.