Towards string breaking with 2+1 dynamical fermions using the stochastic LapH method

Understand

We investigate the use of stochastically estimated light quark propagators in correlation functions involving a static color source.

• To this end we compute the static-light meson pseudoscalar correlation function in the stochastic LapH framework, using an ensemble of $N_f= 2+1$ gauge configurations generated through the CLS effort.
• We extract the static-light as well as the static-strange mass with good statistical precision.
• Together with the static potential, we obtain a preliminary estimate for the expected mixing region.