Chiral condensate and the structure of hadrons

Abstract

A model of hadron masses based on the quark structure of hadrons combined with effects of chiral dynamics is used to calculate the 2+1 flavour chiral condensate in the hadron resonance gas framework. Results are discussed in the context of recent lattice QCD data. Improvements of the dynamical models of hadron structure are suggested with the aim to estimate the strange sigma term of the nucleon.

Comments: 6 pages, 2 figures, contribution to the Proceedings of the XXXI. Max Born Symposium "Three days of critical behaviour in hot, dense QCD", Wroclaw, June 14-16, 2013