Mass inequality for the quark propagator
classification
✦ hep-ph
hep-latnucl-th
keywords
masspropagatorquarkbelowboundedcorrelationfunctionalgauge-fixing
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We show that for any gauge-fixing scheme with positive semi-definite functional integral measure, the inverse correlation length of the quark propagator is bounded below by one-half the pion mass.
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