Abstract
We explore the possibility of very heavy dibaryons with three charm quarks and three beauty quarks, bbbccc, using a constituent model which should lead to the correct solution in the limit of hadrons made of heavy quarks. The six-body problem is treated rigorously, in particular taking into account the orbital, color, and spin mixed-symmetry components of the wave function. Unlike a recent claim based on lattice QCD, no bound state is found below the lowest dissociation threshold.
Highlights
We explore the possibility of very heavy dibaryons with three charm quarks and three beauty quarks, bbbccc, using a constituent model which should lead to the correct solution in the limit of hadrons made of heavy quarks
The six-body problem is treated rigorously, in particular taking into account the orbital, color, and spin mixed-symmetry components of the wave function
Unlike a recent claim based on lattice QCD, no bound state is found below the lowest dissociation threshold
Summary
We explore the possibility of very heavy dibaryons with three charm quarks and three beauty quarks, bbbccc, using a constituent model which should lead to the correct solution in the limit of hadrons made of heavy quarks. When a full quark model calculation is performed the stability does not survive the breaking of flavor SU(3) [13,14], nor the unavoidable dilution of the structure that weakens the strength of the chromomagnetic terms [15,16] Another possibility is the combination of two heavy quarks and two light antiquarks, QQqq ̄. It is important to note that for these systems the lowest two-baryon threshold is always made of two spin 3=2 baryons with quark content ðQQQÞðqqqÞ The existence of such deep bound states in the heavy quark sector should be captured in any model having the right QCD properties in the heavy quark sector. The interaction has two terms only, i.e., spin-orbit and tensor
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
