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Constraints on Chiral Perturbation Theory Parameters from QCD Inequalities
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✦ hep-ph
keywords
parameterschiralconstraintsinequalitiesperturbationsometheorydefining
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We explore some of the constraints imposed by positivity of the QCD measure (Weingarten's inequalities) on the parameters defining chiral perturbation theory. We find, in particular, that $2 m_q (\mu)\leq B_0(\mu) Z(\mu)$. The use of further properties of the exact fermion propagator yields information on some higher order parameters.
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Cited by 1 Pith paper
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