  The spectrum of particles in supersymmetric Yang-Mills theory is expected to
contain a spin 1/2 bound state of gluons and gluinos, the gluino-glue particle.
We study the mass of this particle in softly broken supersymmetric Yang-Mills
theory on a lattice by means of numerical simulations. The main focus is the
estimation of finite size effects. We extrapolate the mass first to the
infinite volume and then to the limit of a vanishing gluino mass. The results
indicate that finite size effects are tolerable on lattices of moderate size,
and that remaining deviations from supersymmetry are probably due to finite
lattice spacing effects.
