1. Dynamical Lattice QCD with Ginsparg-Wilson-Type Fermions
- Author
-
Christian Hagen, Dieter Hierl, Vidushi Maillart, Christian Ehmann, Meinulf Göckeler, Christof Gattringer, Ferenc Niedermayer, Stefan Solbrig, T. Maurer, Daniel Mohler, Tommy Burch, Andreas Schäfer, Peter Hasenfratz, Georg P. Engel, Markus Limmer, and Christian B. Lang
- Subjects
Physics ,Quantum chromodynamics ,Particle physics ,Chiral perturbation theory ,High Energy Physics::Lattice ,High Energy Physics::Phenomenology ,Strong interaction ,Lattice field theory ,Fermion ,Lattice QCD ,Random matrix ,Lattice model (physics) - Abstract
Lattice Quantum Chromodynamics (LQCD) is the most versatile and powerful method to investigate non-perturbative effects in strong interaction physics. In view of the much improved statistical accuracy the control of systematic uncertainties became the most important issue in recent years. The most severe problem is the implementation of chiral symmetry. The BGR collaboration works with two different Dirac operators, both having good chiral properties but are suited best for the analysis of different aspects of QCD: Chirally Improved (CI) fermions are especially well suited for the investigation of excited hadrons while Fixed-Point (FP) fermions are ideal for studies in the so-called e- and δ-regime.
- Published
- 2010