Conjectures about the Chiral Phase Transition in QCD from Anomalous Multi-Instanton Interactions
Conjectures about the Chiral Phase Transition in QCD from Anomalous Multi-Instanton Interactions
To date numerical simulations of lattice QCD have not found a chiral phase transition of first order that is expected to occur for sufficiently light pions. We show how the restoration of an exact global chiral symmetry can strongly decrease the breaking of the approximate, anomalous <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msub><a:mi>U</a:mi><a:mi>A</a:mi></a:msub><a:mo stretchy="false">(</a:mo><a:mn>1</a:mn><a:mo …