scholarly journals On strongly coupled quenched QED4, again: Chiral symmetry breaking, Goldstone mechanism and the nature of the continuum limit

1995 ◽  
Vol 42 (1-3) ◽  
pp. 687-689 ◽  
Author(s):  
M-P Lombardo ◽  
A. Kocić ◽  
J.B. Kogut
Keyword(s):  
Symmetry Breaking ◽  
Chiral Symmetry ◽  
Continuum Limit ◽  
Chiral Symmetry Breaking ◽  
Strongly Coupled ◽  
The Continuum

TORONS, CHIRAL SYMMETRY BREAKING AND U(1) PROBLEM IN QCD AND SQCD

1989 ◽  
Vol 04 (23) ◽  
pp. 2251-2258 ◽  
Author(s):  
A.R. ZHITNITSKY
Keyword(s):  
Symmetry Breaking ◽  
Chiral Symmetry ◽  
Crucial Role ◽  
Topological Charge ◽  
Gauge Theories ◽  
Chiral Symmetry Breaking ◽  
Dual Solutions ◽  
New Class ◽  
Manifold With Boundary ◽  
The Continuum

The new class of self-dual solutions with fractional topological charge in SU(2) gauge theories is considered. The solution is defined on manifold with boundary, it has topological charge Q=1/2 and action S=(8π2)/g2×Q. The contribution of the corresponding fluctuations to chiral condensates [Formula: see text], <λ2> in SQCD is calculated and it is consistent with Konishi anomaly. For the fermion condensate in QCD (with Nf=Nc=2, m→0) we find [Formula: see text], [Formula: see text]. The unbound resonances of the continuum at λ=0 play a crucial role in this calculation.

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