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Order parameter of the chiral symmetry breaking Green Functions at one loop

V. Mateu
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Abstract

Since order parameter of the chiral symmetry breaking Green Functions are a useful link between the OPE expansion and chiral perturbation theory we perform a calculation to the NLO in alpha_s, working in the chiral limit, for all the 2 and 3 point ones. These Green Functions have no perturbative term in the chiral limit and thence their main contribution comes from the quark condensate operator.

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V. Mateu. 2006-10-19. Order parameter of the chiral symmetry breaking Green Functions at one loop. https://doi.org/10.1016/j.nuclphysbps.2007.08.097

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