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The most beautiful strongly bound dibaryon | | Nilmani Mathur
; M. Padmanath
; Debsubhra Chakraborty
; | | Date: |
5 May 2022 | | Abstract: | We report the first lattice quantum chromodynamics (QCD) study of the heavy
dibaryons in which all six quarks have the bottom (beauty) flavor. Performing a
state-of-the-art lattice QCD calculation, with full control over relevant
systematic errors, we find clear evidence for a deeply bound
$Omega_{bbb}$-$Omega_{bbb}$ dibaryon in the $^1S_0$ channel, as a pole
singularity in the $S$-wave $Omega_{bbb}$-$Omega_{bbb}$ scattering amplitude
with a binding energy $-89(_{-12}^{+16})$ MeV. With such a deep binding,
Coulomb repulsion serves only as a perturbation on the ground state
wave-function of the parameterized strong potential and may shift the strong
binding only by a few percent. Considering the scalar channel to be the most
bound for single flavored dibaryons, we conclude this state is the heaviest
possible most deeply-bound dibaryon in the visible universe. | | Source: | arXiv, 2205.02862 | | Services: | Forum | Review | PDF | Favorites | |
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