English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

In this article, we study the strong interaction of the vertexes $\Sigma_bNB$and $\Sigma_c ND$ using the three-point QCD sum rules under two different diracstructures. Considering the contributions of the vacuum condensates up todimension $5$ in the operation product expansion, the form factors of thesevertexes are calculated. Then, we fit the form factors into analyticalfunctions and extrapolate them into time-like regions, which giving thecoupling constant. Our analysis indicates that the coupling constant for thesetwo vertexes are $G_{\Sigma_bNB}=0.43\pm0.01GeV^{-1}$ and$G_{\Sigma_cND}=3.76\pm0.05GeV^{-1}$.

Analysis of the strong coupling form factors of $\Sigma_bNB$ and $\Sigma_c ND$ in QCD sum rules