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HK: Fachverband Physik der Hadronen und Kerne

HK 34: Postersitzung

HK 34.69: Poster

Donnerstag, 13. März 2008, 14:00–16:00, Poster C3

2+1 flavor QCD with the fixed point action in the epsilon-regime — Peter Hasenfratz¹, •Dieter Hierl², Vidushi Maillart¹, Ferenc Niedermayer¹, Andreas Schäfer², Christoph Weiermann¹, and Manuel Weingart¹ — ¹Institute for Theoretical Physics, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland — ²Institute for Theoretical Physics, University of Regensburg, D-93040 Regensburg, Germany

We generated 2+1 flavor 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.