A rational approximation to 〈VV−AA〉 and its O(p6) low-energy constant

2008/01/31 by P. Masjuan, Pere Masjuan, S. Peris +1 · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat #hep-ph

paper · pdf · doi:10.1016/j.physletb.2008.03.040

published as Phys.Lett.B663:61-65,2008 · 10 pages, 1 figure. Comments and references added. Journal version

arxiv created 2008/03/26 · openalex publication_date 2008/03/29 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

Using a sequence of rational approximants and the large-Nc limit of QCD, we estimate the value of the low-energy constant C87 which appears in the Lagrangian of Chiral Perturbation Theory at O(p6).

Citations

• Padé approximants and convergence in capacity
• Use of the operator product expansion to constrain the hadron spectrum
• A planar diagram theory for strong interactions
• Form factors in the radiative pion decay

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