Semileptonic $\Lambda_c \to \Lambda \ell \nu_\ell$ Decays in Light-Cone QCD Sum Rules with $\Lambda_c$ Distribution Amplitudes
High Energy Physics - Phenomenology
2025-10-27 v1
Abstract
We study the semileptonic decay of its SU(3) partner, the () transition, within the framework of light-cone QCD sum rules (LCSR) by using the distribution amplitudes of heavy baryon. The numerical analysis is performed using two different sets of baryon light-cone distribution amplitudes. The resulting form factors are parametrized by a model-independent -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.
Cite
@article{arxiv.2510.21409,
title = {Semileptonic $\Lambda_c \to \Lambda \ell \nu_\ell$ Decays in Light-Cone QCD Sum Rules with $\Lambda_c$ Distribution Amplitudes},
author = {T. M. Aliev and S. Bilmis and M. Savci},
journal= {arXiv preprint arXiv:2510.21409},
year = {2025}
}