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

Kogan, II; Tekin, BAYRAM; Kovner, A

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

JOURNAL OF HIGH ENERGY PHYSICS, sa.3, 2001 (SCI-Expanded, Scopus)

Yayın Türü: Makale / Tam Makale
Basım Tarihi: 2001
Dergi Adı: JOURNAL OF HIGH ENERGY PHYSICS
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Orta Doğu Teknik Üniversitesi Adresli: Hayır

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.