The DMO Sum Rule Revisited

Details The DMO Sum Rule Revisited The DMO Sum Rule Revisited

1997-11-06

arxiv.org/abs/hep-ph/9711256v1

Phys.Lett. B421 (1998) 319-324

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, LaTeX, 1 table

Scientific paper

10.1016/S0370-2693(97)01579-7

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 p^4 and p^6 chiral lagrangians. Suggestions are given for further study.

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