SU(3) vector currents in baryon chiral perturbation theory combined with the 1/Nc expansion
Year: 2020
Type: article
Abstract: Baryon chiral perturbation theory (BChPT) combined with the $1/{N}_{c}$ expansion is applied to the $SU(3)$ vector currents. In terms of the $\ensuremath{\xi}$ power counting linking the low-energy and $1/{N}_{c}$ expansions according to $\mathcal{O}(\ensuremath{\xi})=\mathcal{O}(p)=\mathcal{O}(1/{N}_{c})$, the study is carried out to next-to-next-to-leading order, and it includes $SU(3)$ breaking corrections to the $|\mathrm{\ensuremath{\Delta}}S|=1$ vector charges, charge radii, and magnetic moments and radii. The results are obtained for generic ${N}_{c}$, allowing for investigating the various scalings in ${N}_{c}$.
Authors: I. P. Fernando, J. L. Goity
Language: Latvian
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W2986301316