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arXiv · hep-th/9409002

Effective Field Theories from QCD

R. Sollacher
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Abstract

We present a method for extracting effective Lagrangians from QCD. The resulting effective Lagrangians are based on exact rewrites of cut-off QCD in terms of these new collective field degrees of freedom. These cut-off Lagrangians are thus ``effective'' in the sense that they explicitly contain some of the physical long-distance degrees of freedom from the outset. As an example we discuss the introduction of a new collective field carrying the quantum numbers of the $η'$-meson. (Contribution presented by R. Sollacher at the workshop ``QCD'94'', Montpellier, France, July 7-13, 1994. To appear in those proceedings.)

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R. Sollacher. 1994-09-01. Effective Field Theories from QCD. https://doi.org/10.1016/0920-5632(95)00086-o

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