Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
1996-07-09
Nucl.Phys.Proc.Suppl. 53 (1997) 275-277
Physics
High Energy Physics
High Energy Physics - Lattice
Talk presented at LATTICE96(chirality in qcd) , 3 pages, no figures. Latex file with espcrc2 style
Scientific paper
10.1016/S0920-5632(96)00635-4
We discuss a general strategy to compute the coefficients of QCD chiral Lagrangian by using the lattice regularization of QCD with Wilson fermions. This procedure requires the introduction of an effective Lagrangian for lattice QCD as an intermediate step in the calculation. The continuum QCD chiral Lagrangian can be then obtained by expanding the lattice effective Lagrangian in increasing powers of the external momenta. A suitable renormalization procedure is required to account for the chiral symmetry breaking introduced by the Wilson term in the lattice action. In anticipation of a numerical simulation, the lattice effective Lagrangian is computed analytically and investigated in the strong coupling and large $N$ limit
Levi A. R.
Lubicz Vittorio
Rebbi Claudio
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