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Chiral logarithms in quenched and
Phys. Rev. D 41, 3233 – Published 15 May, 1990
DOI: https://doi.org/10.1103/PhysRevD.41.3233
Abstract
A diagrammatic analysis predicts that, in the quenched approximation, there should be no chiral logarithms, at leading order, in or , for gauge groups . Morel has done an explicit calculation in the strong-gauge-coupling, large-dimension limit, and finds that there are such logarithms. I point out that Morel's calculation is of a quantity different from the quenched pion propagator. I show that if one calculates the correct quantity then there are no chiral logarithms. For SU(2), however, the diagrammatic analysis predicts that there are chiral logarithms in quenched and .
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Omitted endnote
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