Fully-heavy structures in the invariant mass spectrum of J/ψψ (3686) J/ψψ (3770), ψ(3686)ψ(3686), and J/ψ(sic)(1S) at hadron colliders

In this work, we predict the line shape of potential fully-heavy structures existed in the invariant mass spectrum of J/psi psi(3686), J/psi psi(3770), psi(3686)psi(3686), and J/psi(sic)(1S) at high energy proton-proton collisions based on a dynamical rescattering picture, whose verification in experiments should be helpful to further clarify the dominant role in producing fully-charm structure X(6900) recently observed by LHCb. The above final states of vector heavy quarkonia can be experimentally reconstructed more effectively by a mu(+)mu(-) pair in the muon detector compared with Q (Q) over bar meson with other quantum numbers. Furthermore, the corresponding peak mass positions of each of predicted fully-heavy structures are also given. Our theoretical studies here could provide some valuable information for the future measurement proposals of LHCb and CMS, especially based on the accumulated data after completing Run III of LHC in the near future. (C) 2021 The Authors. Published by Elsevier B.V.

Automated summary

In this work, the line shape of potential fully-heavy structures in the invariant mass spectrum of J/psi psi(3686) at high-energy proton-proton collisions was predicted based on a dynamical rescattering picture. The mu(+)mu(-) pair was identified as more efficient in experimentally reconstructing these structures compared to Q (Q) over bar meson with other quantum numbers, with corresponding peak mass positions provided for each predicted fully-heavy structure. The theoretical studies conducted here may offer valuable information for future measurement proposals of LHCb and CMS, especially utilizing data from completing Run III of LHC.