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Ab-initio study of dibaryons with highest bottom number | M. Padmanath
; Nilmani Mathur
; Debsubhra Chakraborty
; | Date: |
24 Oct 2022 | Abstract: | 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 the ground state of 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 signifies 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 found to be -81($^{+14}_{-16}$) MeV. We
quantify various systematic uncertainties involved in this determination,
including those related to the excited state contamination and Coulomb
repulsion between the bottom quarks. | Source: | arXiv, 2210.13026 | Services: | Forum | Review | PDF | Favorites |
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