# Light-Cone Sum Rules Analysis of $\Xi_{QQ^{\prime}q}\to\Lambda_{Q^{\prime}}$ Weak Decays

## TL;DR

This paper employs light-cone sum rules to analyze the weak decays of doubly-heavy baryons into anti-triplet states, calculating decay form factors and predicting branching ratios for future experimental validation.

## Contribution

It introduces a unified approach to describe both bottom and charmed anti-triplet baryons using light-cone distribution functions for decay form factor calculations.

## Key findings

- Calculated decay widths and branching ratios for doubly-heavy baryon decays.
- Provided predictions to be tested by future experiments.
- Enhanced understanding of decay dynamics in doubly-heavy baryons.

## Abstract

We analyze the weak decay of doubly-heavy baryon decays into anti-triplets $\Lambda_Q$ with light-cone sum rules. To calculate the decay form factors, both bottom and charmed anti-triplets $\Lambda_b$ and $\Lambda_c$ are described by the same set of leading twist light-cone distribution functions. With the obtained form factors, we perform a phenomenology study on the corresponding semi-leptonic decays. The decay widths are calculated and the branching ratios given in this work are expected to be tested by future experimental data, which will help us to understand the underlying dynamics in doubly-heavy baryon decays.