Decorrelating topology with HMC

The investigation of the decorrelation efficiency of the HMC algorithm with respect to Vacuum topology is a prerequisite for trustworthy full QCD simu lations, in particular for the computation of topology sensitive quantities . We demonstrate that for m(pi)/m(rho)-ratios greater than or equal to 0.69 sufficient tunneling between the topological sectors can be mp achieved, f or two flavours of dynamical Wilson fermions close to the scaling region (b eta = 5.6). Our results are based on time series of length 5000 trajectorie s.