Hasenfratz, P. and Hierl, D. and Maillart, V. and Niedermayer, F. and Schaefer, A. and Weiermann, C. and Weingart, M. (2009) 2+1 flavor QCD simulated in the epsilon-regime in different topological sectors. JOURNAL OF HIGH ENERGY PHYSICS (11): 100. ISSN 1029-8479,
Full text not available from this repository. (Request a copy)Abstract
We generated configurations with the parametrized fixed-point Dirac operator D-FP on a (1.6 fm)(4) box at a lattice spacing a = 0.13 fm. We compare the distributions of the three lowest k = 1, 2, 3 eigenvalues in the nu = 0, 1, 2 topological sectors with that of the Random Matrix Theory predictions. The ratios of expectation values of the lowest eigenvalues and the cumulative eigenvalue distributions are studied for all combinations of k and nu. After including the finite size correction from NL order chiral perturbation theory we obtained for the chiral condensate in the (MS) over bar scheme [Sigma(2GeV)](1/3) = 0.239(12) GeV, where the error is statistical only.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CHIRAL PERTURBATION-THEORY; RANDOM-MATRIX THEORY; QUARK MASS; DYNAMICAL FERMIONS; MONTE-CARLO; ANOMALOUS DIMENSION; LATTICE QCD; FIXED-POINT; RENORMALIZATION; SYMMETRY; Lattice QCD; QCD; Chiral Lagrangians |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 02 Sep 2020 09:58 |
| Last Modified: | 02 Sep 2020 09:58 |
| URI: | https://pred.uni-regensburg.de/id/eprint/28208 |
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