Semileptonic $\Omega_{b}\rightarrow \Omega_{c}{\ell}\bar\nu_{\ell}$ transition in full QCD

TL;DR

This paper uses QCD sum rules to calculate form factors and predict decay widths and branching ratios for the semileptonic decay of Omega_b to Omega_c baryons across different lepton channels, aiding experimental searches.

Contribution

It provides the first comprehensive calculation of form factors and decay properties for Omega_b to Omega_c semileptonic decays using full QCD sum rules, including all lepton channels.

Findings

Predicted decay widths and branching ratios for all lepton channels.

Calculated ratios of branching fractions between different leptonic modes.

Results can be tested against future experimental data to validate the Standard Model.

Abstract

We investigate the semileptonic decay of $\Omega_b\to\Omega_c~{\ell}\bar\nu_{\ell}$ in three lepton channels. To this end, we use QCD sum rule method in three point framework to calculate the form factors defining the matrix elements of these transitions. Having calculated the form factors as building blocks, we calculate the decay widths and branching fractions of the exclusive decays in all lepton channels and compare the results with other theoretical predictions. The obtained results for branching ratios and ratio of branching fractions at different leptonic channels may help experimental groups in their search for these weak decays. Comparison of the obtained results with possible future experimental data can be useful to check the order of consistency between the standard model theory predictions and data on the heavy baryon decays.