Determination of the strong vertices of doubly heavy baryons with pseudoscalar mesons in QCD

TL;DR

This paper calculates the strong coupling constants of doubly heavy baryons with light pseudoscalar mesons using light cone sum rules, including various distribution amplitudes, and compares results with previous studies.

Contribution

The study provides new calculations of strong coupling constants for doubly heavy baryons with pseudoscalar mesons using an advanced QCD sum rule approach.

Findings

Computed strong coupling constants for doubly heavy baryons with pions and kaons.

Included two-particle and three-particle distribution amplitudes in calculations.

Results are compared with existing literature to validate findings.

Abstract

The strong coupling constant of doubly heavy baryons with light pseudoscalar mesons $ \pi $ and $ K $ are computed within the light cone sum rules. We take into account two-particle and three-particle distribution amplitudes of the said pseudoscalar mesons. We compare our result with the one existing in the literature.