# The 39th International Symposium on Lattice Field Theory (Lattice 2022)

Aug 8 – 13, 2022
Hörsaalzentrum Poppelsdorf
Europe/Berlin timezone

## Ab-initio study of dibaryons with highest bottom number

Aug 9, 2022, 7:00 PM
1h
Poster Presentation Hadron Spectroscopy and Interactions

### Speaker

We present the first lattice study of dibaryons with highest bottom number. Utilizing a set of state-of-the-art lattice QCD ensembles and methodologies, we determine ground state of the dibaryon composed of two $\Omega_{bbb}$ baryons. We extract the related scattering amplitude in the $^1S_0$ channel and find a sub threshold pole, which is an unambiguous evidence for a deeply bound $\Omega_{bbb}$-$\Omega_{bbb}$ dibaryon. The binding energy of such a state as dictated by this pole singularity is $-89(_{-12}^{+16})$ MeV. We quantify various systematic uncertainties involved in this determination, including those related to the Coulomb repulsion between the bottom quarks.