Evaluating decay Rates and Asymmetries of $\Lambda_b$ into Light Baryons in LFQM

TL;DR

This paper calculates decay rates and asymmetries of Lambda_b baryons into light baryons using the light front quark model, providing predictions consistent with existing data and future experimental tests.

Contribution

It applies the light front quark model with a diquark picture to compute decay branching ratios and asymmetries of Lambda_b baryons, offering new theoretical predictions.

Findings

Branching ratio of Lambda_b to Lambda + J/psi matches experimental data

Provides predictions for decay processes to be tested at LHCb and ILC

Discusses the validity of the diquark picture in these calculations

Abstract

In this work we calculate the branching ratios of semi-leptonic and non-leptonic decays of $\Lambda_b$ into light baryons ($p$ and $\Lambda$), as well as the measurable asymmetries which appear in the processes, in the light front quark model (LFQM). In the calculation, we adopt the diquark picture and discuss the justifiability of applying the picture in our case. Our result on the branching ratio of $\Lambda_b\to\Lambda+J/\psi$ is in good agreement with data. More predictions are made in the same model and the results will be tested in the future experiments which will be conducted at LHCb and even ILC.