Instanton vacuum beyond chiral limit
M. Musakhanov
Abstract
In this talk it is discussed the derivation of low-frequencies part of quark determinant and partition function. As a first application, quark condensate is calculated beyond chiral limit with the account of O(m), O(1/Nc), O(1/Nc m) and O(1/Nc m ln m) corrections. It is demonstrated complete correspondence of the results to chiral perturbation theory.
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