• Maarten F L Golterman

      Articles written in Pramana – Journal of Physics

    • How good is the quenched approximation of QCD?

      Maarten F L Golterman

      More Details Abstract Fulltext PDF

      The quenched approximation for QCD is, at present and in the foreseeable future, unavoidable in lattice calculations with realistic choices of the lattice spacing, volume and quark masses. In this talk, I review an analytic study of the effects of quenching based on chiral perturbation theory. Quenched chiral perturbation theory leads to quantitative insight on the difference between quenched and unquenched QCD, and reveals clearly some of the diseases which are expected to plague quenched QCD.

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