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Vacuum expectation value of A^2 from LQCD
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classification
hep-lat
keywords
lqcdarguecasecleardefinitionexpansionexpectationextract
abstract
We argue from LQCD that there is a non vanishing v.e.v of $A_a^\mu A^a_\mu$ in QCD in the Landau gauge. We use operator product expansion to provide a clear definition of $A_a^\mu A^a_\mu$ and extract a number both in the quenched and unquenched case.
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