A rational approximation to <VV-AA> and its O(p^6) low-energy constant

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Using a sequence of rational approximants and the large-Nc limit of QCD, we estimate the value of the low-energy constant C_87 which appears in the Lagrangian of Chiral Perturbation Theory at O(p^6).
10 pages, 1 figure. Comments and references added. Journal version

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High Energy Physics - Phenomenology, High Energy Physics - Lattice

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http://salesiana.dossiersoluciones.com/handle/123456789/205254

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0801.3558
 http://arxiv.org/abs/0801.3558
 Phys.Lett.B663:61-65,2008
 doi:10.1016/j.physletb.2008.03.040

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