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October 22, 2025Open Access

Study of Singly Charmed Dibaryons in Quark Model

Key Points

Singly charmed dibaryons exhibit stronger attraction with lower isospin and strangeness, promoting bound state formation.
Bound states such as ΣΣc and ΣcΔ have been identified, although they can decay through open channels.
Effective potentials analysis suggests that certain configurations are more likely to yield stable dibaryon states.
Further exploration of scattering processes is necessary to verify the nature of these dibaryon states.

Abstract

We perform a systematic investigation of low-lying singly charmed dibaryon systems with J=1, I=0,12,1,32,2,52 and strangeness S=−1,−2,−3,−4,−5 in the chiral quark model. According to the analysis of effective potentials, dibaryon systems characterized by lower isospin and magnitude of strangeness exhibit stronger attractive interactions, which may enhance their tendency to form bound states. Experimental efforts may therefore prioritize the search for such configurations. The bound-state calculation results indicate that we have obtained some single-channel bound states, which are ΣΣc, ΣΣc*, Σ*Σc, Σ*Σc* with I=0,S=−1; ΣcΔ, Σc*Δ with I=12,S=0; ΣΣc with I=1,S=−1; ΣcΔ with I=32,S=0; and Ξ*Σc* with I=32,S=−2. However, these states can decay through open channels. We have listed both these single-channel bound states and their corresponding decay channels in this work for experimental reference and search. In the future, we need to study the scattering processes of the open channels further to confirm whether these states are resonance states.

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