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Article
Two-loop analysis of axial vector current propagators in chiral perturbation theory
PHYSICAL REVIEW D
  • E Golowich
  • J Kambor
Publication Date
1998
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
Pages
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Citation Information
E Golowich and J Kambor. "Two-loop analysis of axial vector current propagators in chiral perturbation theory" PHYSICAL REVIEW D Vol. 58 Iss. 3 (1998)
Available at: http://works.bepress.com/eugene_golowich/19/