The DMO sum rule revisited
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We reconsider the DMO sum rule in light of our recent two-loop calculations of isospin and hypercharge vector and axialvector current propagators in chiral perturbation theory. A modified derivation valid to second order in the light quark masses is presented, and a phenomenological analysis yields determination of a combination of finite counterterms occurring in the p4 and p6 chiral lagrangians. Suggestions are given for further study.
E Golowich and J Kambor. "The DMO sum rule revisited" Physics Letters B 421.1-4 (1998): 319-324.
Available at: http://works.bepress.com/eugene_golowich/23