Mainz 2004 – wissenschaftliches Programm
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T: Teilchenphysik
T 207: QCD II
T 207.3: Vortrag
Dienstag, 30. März 2004, 14:30–14:45, RW 5
Chiral-QCD Low Energy Constants from Lattice Simulations — •Enno E. Scholz1, Federico Farchioni2, István Montvay1, Gernot Münster2, and Christian Schmidt2 — 1Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22603 Hamburg, Germany — 2Westfälische Wilhelms-Universität Münster, Inst. f. Theoretische Physik, Wilhelm-Klemm-Str. 9, 48149 Münster, Germany
The lattice-simulations with Nf=2 flavours have reached quark masses, which are light enough to allow the application of chiral perturbation theory. Using partially-quenched chiral perturbation theory it is now possible, to obtain some estimates for the low energy (Gasser-Leutwyler) constants of chiral QCD. In the simulations we used the TSMB (two-step multi-boson)-algorithm for including the light dynamical quark flavours. A future step is to use twisted mass lattice QCD, which should allow simulations with even lighter quark masses.