Abstract We study the semileptonic decay of its SU (3) partner, the c ^+ _ Λ c → Λ ℓ + ν ℓ (= e, ℓ = e, μ) transition, within the framework of light-cone QCD sum rules (LCSR) by using the distribution amplitudes of heavy c Λ c baryon. The numerical analysis is performed using two different sets of c Λ c baryon light-cone distribution amplitudes. The resulting form factors are parametrized by a model-independent z -series expansion and used to compute the differential and total decay widths. Our predictions for the branching fractions are in good agreement with the latest BESIII measurements and with lattice-QCD results.
Aliev et al. (Sat,) studied this question.