Instanton vacuum beyond chiral limit
Abstract
Description
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/N_c), O(1/N_c m) and O(1/N_c m ln m) corrections. It is demonstrated complete correspondence of the results to chiral perturbation theory.
11 pages, talk given at the XVII International Baldin Seminar "Relativistic Nuclear Physics and Quantum Chromodynamics", Sept.27-Oct.2, 2004 (JINR, Dubna, Russia)
11 pages, talk given at the XVII International Baldin Seminar "Relativistic Nuclear Physics and Quantum Chromodynamics", Sept.27-Oct.2, 2004 (JINR, Dubna, Russia)