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2+1 flavor QCD with the fixed point action in the є-regime

Presenter: Dieter Hierl — University of Regensburg

P. Hasenfratz, D. Hierl, V. Maillart, F. Niedermayer, A. Schäfer, C. Weiermann and M. Weingart
BGR (Bern-Graz-Regensburg) Collaboration

We generated configurations with the approximate fixed point Dirac operator D on a 124 lattice with a ≈ 0.13 fm where the scale was set by r0. The measurements were made using D and the overlap operator constructed from D as the kernel. The results are compared with random matrix and chiral perturbation theories.