Towards a consistent estimate of the chiral low-energy constants
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Towards a consistent estimate of the chiral low-energy constants

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Towards a consistent estimate of the chiral low-energy constants

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Cirigliano, Vincenzo; Ecker, Gerhard; Eidemüller, Markus; Kaiser, Roland; Pich Zardoya, Antonio Perfil; Portolés Ibáñez, Jorge
Aquest document és un/a article, creat/da en: 2006
Guided by the large-N-C limit of QCD, we construct the most general chiral resonance Lagrangian that can generate chiral low-energy constants up to O(p(6)). By integrating out the resonance fields, the low-energy constants are parametrized in terms of resonance masses and couplings. Information on those couplings and on the low-energy constants can be extracted by analysing QCD Green functions of currents both for large and small momenta. The chiral resonance theory generates Green functions that interpolate between QCD and chiral perturbation theory. As specific examples we consider the (VAP) and (SPP) Green functions.

    Cirigliano, Vincenzo Ecker, Gerhard Eidemüller, Markus Kaiser, Roland Pich Zardoya, Antonio Portolés Ibáñez, Jorge 2006 Towards a consistent estimate of the chiral low-energy constants Nuclear Physics B 753 1-2 139 177
http://dx.doi.org/10.1016/j.nuclphysb.2006.07.010
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