We report the experimental determination of the scattering parameters for a
p-wave Feshbach resonance in a single-component Fermi gas of
6Li atoms in the lowest spin state. The time scale of the cross-dimensional relaxation reflects the elastic-scattering rate of the atoms, and scattering parameters are determined from the scattering rate as a function of magnetic field by taking into account the momentum distribution and inhomogeneous density profile of the atoms in a trap. Precise determination of the scattering parameters for a
p-wave Feshbach resonance is an important step toward the realization of a
p-wave superfluid in an ultracold atomic gas.