Axial-vector form factors for K2 and π2 at O(p6) in chiral perturbation theory

2003/06/30 by C. Geng, C. Q. Geng, I-Lin Ho +1 · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/j.nuclphysb.2003.12.039

published as Nucl.Phys. B684 (2004) 281-317 · 36 pages, 6 Figures, version to be published in Nucl. Phys. B

arxiv created 2004/01/14 · openalex publication_date 2004/01/23 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present two-loop calculations on the axial-vector form factors F_A of semileptonic radiative kaon and pion decays in chiral perturbation theory. The relevant dimension-6 terms of the lagrangian are evaluated from the resonance contribution and the results of the irreducible two-loop graphs of the sunset topology are given in detail. We also explicitly show that the divergent parts in F_A are cancelled exactly as required.

Citations

• Pinning down the kaon form factors inK+→μ+νμγdecay
• Semileptonic Kaon Decays
• Two-loop analysis of axial vector current propagators in chiral perturbation theory
• Chiral perturbation theory to one loop
• Chiral perturbation theory
• Chiral perturbation theory: Expansions in the mass of the strange quark
• Anomalous chiral perturbation theory meson Lagrangian to orderp6reexamined
• Chiral Dynamics in Nucleons and Nuclei
• Review of particle properties
• Review of Particle Physics

Cited by

• Study of the radiative pion decay
• Analysis ofK+→e+νeγin light-front quark model and chiral perturbation theory of orderp6