  We apply general QCD parametrization to describe an octet baryon at rest in a
static and uniform magnetic field, in order to demonstrate a dynamical
implementation of the hadron model. The derived evolution has the asymptote of
Larmor precession, governed by an effective magnetic dipole moment coupling.
The parameters appear in the effective magnetic dipole moment has been studied
in the original works in kinematic settings. Here we show that the parameters
have actual dynamical meaning, and are indeed measured by the process.
