QCD sum rules analysis of weak decays of doubly heavy baryons: the $b\to c$ processes

TL;DR

This paper uses QCD sum rules to analyze the weak decays of doubly heavy baryons, calculating transition form factors and pole residues, and applying these to semi-leptonic decay phenomenology.

Contribution

It provides a detailed QCD sum rules approach to compute form factors and residues for doubly heavy baryon decays, including contributions up to dimension-6 operators.

Findings

Calculated transition form factors for $b o c$ decays.

Analyzed semi-leptonic decay processes.

Included contributions from operators up to dimension-6.

Abstract

A comprehensive study of $b\to c$ weak decays of doubly heavy baryons is presented in this paper. The transition form factors as well as the pole residues of the initial and final states are respectively obtained by investigating the three-point and two-point correlation functions in QCD sum rules. Contributions from up to dimension-6 operators are respectively considered for the two-point and three-point correlation functions. The obtained form factors are then applied to a phenomenological analysis of semi-leptonic decays.