Purely Baryonic Weak Decays of Heavy Baryons in Skyrme Model

TL;DR

This paper explores purely baryonic weak decays of heavy baryons using the Skyrme model, providing theoretical predictions for decay rates that could test the standard model and CP violation sources.

Contribution

It introduces a novel approach to calculate baryonic decay processes by modeling heavy baryons as bound states within the Skyrme framework.

Findings

Branching fraction estimated at ~10^{-6}.

Results align with previous theoretical estimates.

Supports potential for experimental observation.

Abstract

Purely baryonic weak decays of heavy baryons are investigated within the framework of the Skyrme model. These decays belong to a new class of unobserved decay channels, which would help us to test the standard model, particularly potential sources of CP violation in the baryonic sector. By interpreting the heavy baryon as a bound state of a heavy meson and a baryon (Skyrmion), a direct calculation of the decay process $\Lambda_b \to p\,\bar p\,n$ is performed. The resulting branching fraction is of $\mathcal{O}(10^{-6})$, in agreement with previous estimates.