Renormalization of the baryon axial vector current in large-Nc chiral perturbation theory

15th Mexican School of Particles and Fields

Flores-Mendieta, Rubén^1 ; Ruíz, María A. Hernández^2 ; Hofmann, Christoph P.^3

Institute de Física, Universidad Autónoma de San Luis Potosí, Álvaro Obregón 64, Zona Centro, 78000, San-Luis-Potosí, Mexico^1

Facultad de Ciencias Químicas, Universidad Autónoma de Zacatecas, Apartado Postal 585, Zacatecas, Zacatecas 98060, Mexico^2

Facultad de Ciencias, Universidad de Colima, Bernal Díaz del Castillo 340, Colima, Colima 28045, Mexico^3

关键词: Axial vector;    Chiral perturbation theory;    Intermediate state;    Renormalization;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/468/1/012014/pdf
DOI  :  10.1088/1742-6596/468/1/012014

来源: IOP

【 摘 要 】

The baryon axial vector current is considered within the combined framework of large-Ncbaryon chiral perturbation theory (where Ncis the number of colors) and the baryon axial vector couplings are extracted. Loop graphs with octet and decuplet intermediate states are systematically incorporated into the analysis.