Home > On the large-N$_{c}$ behaviour of the L$_{7}$ coupling in $\chi$PT |
Article | |
Report number | hep-ph/9412343 ; CPT-94-PE-3131 ; CERN-TH-7545-94 ; CERN-TH-7545-94 ; CPT-3131 |
Title | On the large-N$_{c}$ behaviour of the L$_{7}$ coupling in $\chi$PT |
Author(s) | Peris, Santiago (Marseille, CPT ; CERN) ; de Rafael, Eduardo (Marseille, CPT) |
Affiliation | (CNRS Luminy) ; (CERN) |
Publication | 1995 |
Imprint | 21 Dec 1994 |
Number of pages | 5 |
Note | 6 pages, latex(includes macro at the beginning of file), no figures. Report-no: CERN-TH.7545/94 and CPT-94/PE.3131 |
In: | Phys. Lett. B 348 (1995) 539-542 |
DOI | 10.1016/0370-2693(95)00160-M |
Subject category | Particle Physics - Phenomenology |
Abstract | It is shown that the usual large-$N_c$ counting of the coupling constant $L_{7}$ of the ${\cal O}(p 4)$ low-energy chiral $SU(3)$ Lagrangian \cite{GL85} is in conflict with general properties of QCD in the large-$N_c$ limit. The solution of this conflict within the framework of a chiral $U(3)$ Lagrangian is explained. |
Copyright/License | Copyright @ unknown. Published by Elsevier B.V. |