The condensate for two dynamical chirally improved quarks in QCD

Details The condensate for two dynamical chirally improved quarks in QCD The condensate for two dynamical chirally improved quarks in QCD

2006-11-07

arxiv.org/abs/hep-lat/0611010v3

Phys.Lett.B649:225-229,2007

Physics

High Energy Physics

High Energy Physics - Lattice

8 pages, 2 figures, Final version. To be published

Scientific paper

10.1016/j.physletb.2007.03.059

We compare the eigenvalue spectra of the Dirac operator from a simulation with two mass degenerate dynamical chirally improved fermions with Random Matrix Theory. Comparisons with distribution of k-th eigenvalues (k=1,2) in fixed topological sectors (nu=0,1) are carried out using the Kolmogorov-Smirnov test. The eigenvalue distributions are well described by the RMT predictions. The match allows us to read off the quark condensate in the chiral limit directly. Correcting for finite size and renormalization we obtain a mean value of -(276 (11)(16) MeV)**3 in the MS-bar scheme.

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