PoS - Proceedings of Science
Volume 317 - The 9th International workshop on Chiral Dynamics (CD2018) - Session: Hadron Structure
BChPT x 1/Nc in SU(3): a more effective theory
J.L. Goity* and I.P. Fernando
Full text: pdf
Published on: February 28, 2020
Abstract
The chiral and $1/N_c$ expansions are combined in the description of low energy baryons. The combination furnishes a better behaved expansion, consequence of exactly eliminating large terms that violate the $1/N_c$ expansion and which are typical of formulations of BChPT where consistency with the large $N_c$ limit is disregarded. The improvements are particularly dramatic in the case of SU(3). The general framework is outlined and applications to the vector charges and axial couplings are presented. A discussion of Lattice QCD results with three quark flavors for axial couplings is presented
DOI: https://doi.org/10.22323/1.317.0026
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