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

Ian I. Kogan | Zendy; Bayram Tekin | Zendy; Alex Kovner | Zendy

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

Author(s) -

Ian I. Kogan,

Bayram Tekin,

Alex Kovner

Publication year - 2001

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2001/03/021

Subject(s) - instanton , physics , quantum chromodynamics , particle physics , phase (matter) , gauge theory , anomaly (physics) , theoretical physics , quantum electrodynamics , quantum mechanics

We show that correlators of some local operators in gauge theories aresensitive to the presence of the instantons even at high temperature where thelatter are bound into instanton-anti-instanton "molecules". We calculatecorrelation functions of such operators in the deconfined phase of the 2+1dimensional Georgi-Glashow model and discuss analogous quantities in thechirally symmetric phase of QCD. We clarify the mechanism by which theinstanton-anti-instanton molecules contribute to the anomaly of axial U(1) athigh temperature.Comment: 23 pages, 4 figures, minor changes are mad

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