Chiral Perturbation Theory on the Lattice; Strong Coupling Expansion

Details Chiral Perturbation Theory on the Lattice; Strong Coupling Expansion Chiral Perturbation Theory on the Lattice; Strong Coupling Expansion

1994-01-11

arxiv.org/abs/hep-lat/9401009v2

Nucl.Phys. B421 (1994) 241-260

Physics

High Energy Physics

High Energy Physics - Lattice

20 pages, Latex. A paragraph in the text has been modified to provide a more accurate reference to previous applications of th

Scientific paper

10.1016/0550-3213(94)90233-X

We evaluate the coefficients of the effective chiral Lagrangian to $O(p^4)$ in the strong coupling, large-N expansion. In this limit we explicitly perform the functional integral over fundamental degrees of freedom and obtain the effective chiral Lagrangian. We perform this calculation on the Body Centered Hypercubical lattice which preserves Euclidean invariance to order $p^4$. We further discuss how the coefficients could be obtained numerically, out of the strong-coupling domain.

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