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物理学
Exotic ΩΩ dibaryon states in a molecular picture
We investigate the exotic ΩΩ dibaryon states with J~P=0~+ and 2~+ in a molecular picture.We construct a tensor ΩΩ 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_(ΩΩ,0~+)=(3.33±0.51) GeV and m_(ΩΩ,2~+)=(3.15±0.33) GeV,respectively,which are below the 2m_Ω threshold.Within error,these results do not negate the existence of loosely bound molecular ΩΩ dibaryon states.These exotic strangeness S=-6 and doubly-charged ΩΩ dibaryons,if they exist,may be identified in heavy-ion collision processes in the future.
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Chinese Physics C
2021年04期
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