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Low-energy couplings of QCD from topological zero-mode wave functions
By matching 1/m^2 divergences in finite-volume two-point correlation functions of the scalar or pseudoscalar densities with those obtained in chiral perturbation theory, we derive a relation between the Dirac operator zero-mode eigenfunctions at fixed non-trivial topology and the low-energy constant...
| Autores principales: | , , , , |
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| Lenguaje: | eng |
| Publicado: |
2003
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1088/1126-6708/2004/01/003 http://cds.cern.ch/record/690324 |