$\Xi_{bb}$ and $\Omega_{bbb}$ molecular states

TL;DR

This paper predicts new molecular states of doubly and triply bottom baryons using a vector-exchange interaction model, extending previous successful applications to other heavy baryons and pentaquarks.

Contribution

It introduces a novel application of the local hidden gauge approach to predict $ ext{Xi}_{bb}$ and $ ext{Omega}_{bbb}$ molecular states with specific energies.

Findings

Seven $ ext{Xi}_{bb}$ states between 10408 and 10869 MeV.

One $ ext{Omega}_{bbb}$ state at 15212 MeV.

Model successfully extends to bottom baryon sector.

Abstract

Using the vector-exchange interaction in the local hidden gauge approach, which in the light quark sector generates the chiral Lagrangian, and has produced realistic results for $\Omega_c, \Xi_c, \Xi_b$ and the hidden charm pentaquark states, we study the meson-baryon interactions in the coupled channels that lead to the $\Xi_{bb}$ and $\Omega_{bbb}$ excited states of the molecular type. We obtain seven states of the $\Xi_{bb}$ type with energies between $10408$ and $10869$ MeV and one $\Omega_{bbb}$ state at $15212$ MeV.