Masses and strong decays of open charm hexaquark states Σc(*) Σc(*)

Inspired by the recent discovery of the doubly charmed tetraquark state T-cc(+) by the LHCb Collaboration, we perform a systematic study of masses and strong decays of open charm hexaquark states Sigma((*))(c) Sigma((*))(c). Taking into account heavy quark spin symmetry breaking, we predict several bound states of isospin I = 0, I = 1, and I = 2 in the one boson exchange model. Moreover, we adopt the effective Lagrangian approach to estimate the decay widths of Sigma((*))(c) Sigma((*))(c) -> Lambda(c)Lambda(c) and their relevant ratios via the triangle diagram mechanism, which range from a few MeV to a few tens of MeV. We strongly recommend future experimental searches for the Sigma((*))(c) Sigma((*))(c) hexaquark states in the Lambda(c)Lambda(c) invariant mass distributions.

Automated summary

Inspired by the recent discovery of the doubly charmed tetraquark state T-cc(+) by the LHCb Collaboration, a study on the masses and strong decays of open charm hexaquark states Sigma((*))(c) Sigma((*))(c) was conducted. Bound states of various isospin values were predicted, and decay widths of Sigma((*))(c) Sigma((*))(c) -> Lambda(c)Lambda(c) were estimated via effective Lagrangian approach, with recommendations for future experimental searches for these hexaquark states in the Lambda(c)Lambda(c) invariant mass distributions.