Strong $Σ_bNB$ and $Σ_cND$ coupling constants in QCD

Abstract

We study the strong interactions among the heavy bottom spin--1/2 $Σ_b$ baryon, nucleon and $B$ meson as well as the heavy charmed spin--1/2 $Σ_c$ baryon, nucleon and $D$ meson in the context of QCD sum rules. We calculate the corresponding strong coupling form factors defining these vertices by using a three point correlation function. We obtain the numerical values of the corresponding strong coupling constants via the most prominent structure entering the calculations.

10 Pages, 3 Figures and 4 Tables