
TY  - JOUR
A1  - Suganuma, H. 
A1  - Umisedo, S. 
A1  - Sasaki, S. 
A1  - Toki, H. 
A1  - Miyamura, O. 
T1  - Monopole Dominance for Nonperturbative QCD
JF  - Australian Journal of Physics
JO  - Aust. J.  Phys.
Y1  - 1997
VL  - 50
IS  - 1
SP  - 233
EP  - 244
KW  - 
UR  - https://doi.org/10.1071/P96045 
N2  - Monopole dominance for the nonperturbative features in QCD is studied both in the continuum and the lattice gauge theories. First, we study the dynamical chiral-symmetry breaking (D&chi;SB) in the dual Higgs theory using the effective potential formalism. We find that the main driving force for D&chi;SB is brought from the confinement part in the nonperturbative gluon propagator rather than the short-range part, which means monopole dominance for D&chi;SB. Second, the correlation between instantons and QCD&#8211;monopoles is studied. In the Polyakov-like gauge, where A4(x) is diagonalized, the QCD&#8211;monopole trajectory penetrates the centre of each instanton, and becomes complicated in the multi-instanton system. Finally, using the SU(2) lattice gauge theory with 164 and 163 &#215; 4, the instanton number is measured in the singular (monopole-dominating) and regular (photon-dominating) sectors, respectively. Instantons and anti-instantons only exist in the monopole sector both in the maximally abelian gauge and in the Polyakov gauge, which means monopole dominance for the topological charge. 
ER  -

