Field Configurations and the SU(2) Haar Measure in QCD
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We characterise a class of SU(2) gluonic field configurations in the modified axial gauge where a zero mode component vanishes at some space point but the global Haar measure remains non-zero. The consequence of this is that gluonic wavefunctionals need not vanish at the boundary of the fundamental modular domain, which itself permits $θ$ dependence in QCD(3+1).
7 pages, LaTeX. No macros or figures. Submitted to Phsics Letters B
7 pages, LaTeX. No macros or figures. Submitted to Phsics Letters B