Semileptonic decay of the triply heavy $\Omega_{ccb}$ to the observed $\Xi^{++}_{cc}$ state

TL;DR

This paper calculates the decay properties of the triply heavy  baryon into a doubly heavy  baryon using QCD sum rules, providing theoretical predictions to aid experimental searches.

Contribution

It presents the first calculation of the semileptonic decay form factors and widths of  to  using QCD sum rules across all lepton channels, including full form factor analysis.

Findings

Computed six vector and axial form factors.

Predicted decay widths for all lepton channels.

Provided fit functions for form factors over the physical region.

Abstract

We investigate the weak semileptonic decay of the $ \Omega^{+}_{ccb} \rightarrow \Xi^{++}_{cc} ~{\ell}\bar\nu_{\ell}$, where a triply heavy baryon with spin 1/2 decays into the observed doubly heavy baryon with spin 1/2, using QCD sum rule method in all lepton channels. We compute the six relevant vector and axial vector form factors entering the low energy matrix elements in full theory. The invariant form factors are building blocks, using the fit faction of which in terms of $ q^2 $ in whole physical region, we calculate the exclusive widths in three lepton channels. Our predictions may help the present and future experiments in the course of their search for doubly and triply heavy baryons.