Instanton molecules at high temperature - the Georgi-Glashow model and beyond


Kogan I., Tekin B. , Kovner A.

JOURNAL OF HIGH ENERGY PHYSICS, 2001 (SCI İndekslerine Giren Dergi) identifier identifier

  • Basım Tarihi: 2001
  • Dergi Adı: JOURNAL OF HIGH ENERGY PHYSICS

Özet

We show that correlators of some local operators in gauge theories are sensitive to the presence of the instantons even at high temperature where the latter are bound into instanton-anti-instanton "molecules". We calculate correlation functions of such operators in the deconfined phase of the 2+1 dimensional Georgi-Glashow model and discuss analogous quantities in the chirally symmetric phase of QCD. We clarify the mechanism by which the instanton-anti-instanton molecules contribute to the anomaly of axial U(1) at high temperature.