Towards a consistent estimate of the chiral low-energy constants

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Title:	Towards a consistent estimate of the chiral low-energy constants
Keywords:	Chiral Lagrangians 1/NC expansion QCD
Publisher:	Elsevier
Description:	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. Ministerio de Educación y Ciencia, FPA2004-00996, HU2002-0044, Generalitat Valenciana, GRUPOS03/013, GV04B-594, GV05/015, European Commission, HPRN-CT2002-00311 (EURIDICE) Peer reviewed
URI:	http://dspace.mediu.edu.my:8181/xmlui/handle/10261/2743
Other Identifiers:	Nuclear Physics B753 (2006) 139-177 http://hdl.handle.net/10261/2743 10.1016/j.nuclphysb.2006.07.010
Appears in Collections:	Digital Csic

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