Publication Date

1998

Journal or Book Title

PHYSICAL REVIEW D

Abstract

We perform a calculation of the isospin and hypercharge axial vector current propagators [ΔA3μν(q) and ΔA8μν(q)] to two loops in SU(3)×SU(3) chiral perturbation theory. A large number of O(p6) divergent counterterms are fixed, and complete two-loop renormalized expressions for the pion and eta masses and decay constants are obtained. The calculated isospin and hypercharge axial vector polarization functions are used as input in new chiral sum rules, valid to second order in the light quark masses. Some phenomenological implications of these sum rules are considered.

Comments

This is the pre-published version achieved from ArXiv. The published version is located at http://prd.aps.org/abstract/PRD/v58/i3/e036004

Volume

58

Pages

-

Issue

3

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