The strong $\Lambda_bNB$ and $\Lambda_cND$ vertices

TL;DR

This paper calculates the strong coupling constants for vertices involving Lambda_b, Lambda_c, nucleons, and B/D mesons using QCD, providing new numerical results and comparisons with existing predictions.

Contribution

It introduces a QCD-based calculation of the strong coupling constants for Lambda_bNB and Lambda_cND vertices, including comparison with previous predictions.

Findings

Calculated $g_{\Lambda_bNB}$ and $g_{\Lambda_cND}$ coupling constants.

Compared $\Lambda_cND$ vertex result with existing prediction at $Q^2=0$.

Provides numerical values for strong vertices in heavy baryon interactions.

Abstract

We investigate the strong vertices among $\Lambda_b$, nucleon and $B$ meson as well as $\Lambda_c$, nucleon and $D$ meson in QCD. In particular, we calculate the strong coupling constants $g_{\Lambda_bNB}$ and $g_{\Lambda_cND}$ for different Dirac structures entered the calculations. In the case of $\Lambda_cND$ vertex, the result is compared with the only existing prediction obtained at $Q^2=0$.