Dibaryon with Highest Charm Number near Unitarity from Lattice QCD
Related Experiment Video
Updated: Oct 22, 2025

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Yan Lyu1,2, Hui Tong1,3, Takuya Sugiura3
1State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China.
Abstract:
A pair of triply charmed baryons, Ω_{ccc}Ω_{ccc}, is studied as an ideal dibaryon system by (2+1)-flavor lattice QCD with nearly physical light-quark masses and the relativistic heavy-quark action with the physical charm quark mass. The spatial baryon-baryon correlation is related to their scattering parameters on the basis of the HAL QCD method. The Ω_{ccc}Ω_{ccc} in the ^{1}S_{0} channel, taking into account the Coulomb repulsion with the charge form factor of Ω_{ccc}, leads to the scattering length a_{0}^{C}≃-19 fm and the effective range r_{eff}^{C}≃0.45 fm. The ratio r_{eff}^{C}/a_{0}^{C}≃-0.024, whose magnitude is considerably smaller than that of the dineutron (-0.149), indicates that Ω_{ccc}Ω_{ccc} is located in the unitary regime.
More Related Videos
08:54Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid
Published on: January 25, 2020
05:51Isotopic Effect in Double Proton Transfer Process of Porphycene Investigated by Enhanced QM/MM Method
Published on: July 19, 2019
Related Concept Videos
Trends in Lattice Energy: Ion Size and Charge
Nuclear Stability
To hold positively charged protons together...
Lattice Centering and Coordination Number
Types of Unit Cells
Imagine taking a large number of identical...
Atomic Radii and Effective Nuclear Charge
Nuclear Binding Energy
Molecular Orbital Theory II