Journal
CHINESE PHYSICS C
Volume 45, Issue 4, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1674-1137/abdfbe
Keywords
QCD sum rules; molecular state; dibaryon
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Funding
- National Natural Science Foundation of China [11722540, 12075019]
- Fundamental Research Funds for the Central Universities
- National Key Research and Development Program of China [2020YFA0406400]
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The study indicates the existence of exotic ΩΩ dibaryon states in a molecular picture with masses below the 2m(Ω) threshold. They may potentially be identified in heavy-ion collision processes.
We investigate the exotic Omega Omega dibaryon states with JP = 0(+) and 2(+) and in a molecular picture. We construct a tensor molecular interpolating current and calculate the two-point correlation function within the method of QCD sum rules. Our calculations indicate that the masses of the scalar and tensor dibaryon states are m(Omega Omega,0+) = (3.33 +/- 0.51) GeV and 3(Omega Omega,2+) = (3.15 +/- 0.33)GeV, respectively, which are below the 2m(Omega) threshold. Within error, these results do not negate the existence of loosely bound molecular Omega Omega dibaryon states. These exotic strangeness S = -6 and and doubly-charged Omega Omega dibaryons, if they exist, may be identified in heavy-ion collision processes in the future.
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