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Título

Large-Nc estimate of the chiral low-energy constants

Autor Portolés, Jorge
Palabras clave Perturbation-theory
Quantum chromodynamics (QCD)
Decays
Mesons
[PACS] Expansions for large numbers of components (e.g., 1/Nc expansions)
[PACS] Chiral Lagrangians
Fecha de publicación sep-2007
EditorJagiellonian University
Polish Academy of Arts and Sciences
Citación Acta Physica Polonica B 38(9): 2789-2796 (2007)
ResumenChiral low-energy constants incorporate short-distance information from the dynamics involving heavier degrees of freedom not present in the chiral Lagrangian. We have studied the contribution of the lightest resonances to the chiral low-energy constants, up to O(p^6), within a systematic procedure guided by the large-Nc limit of QCD and also including short-distance asymptotic constraints.
Descripción 8 pages, 1 figure.-- PACS nrs.: 11.15.Pg, 12.38.–t, 12.39.Fe.-- ISI Article Identifier: 000249819800009.-- ArXiv pre-print available at: http://arxiv.org/abs/hep-ph/0702179
Talk given at the Final Euridice Meeting "Effective Theories of colours and flavours : from EURODAPHNE to EURIDICE", 24th-27th August 2006, Kazimierz (Poland).
Versión del editorhttp://th-www.if.uj.edu.pl/acta/vol38/pdf/v38p2789.pdf
URI http://hdl.handle.net/10261/9070
ISSN0587-4254 (Print)
1509-5770 (Online)
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