Work

Three-body resonances of α α M clusters ( M = ϕ , J / ψ , η c ) in Be M 8 nuclei

Year: 2026

Type: article

Abstract: Motivated by the recently obtained Hadrons to Atomic nuclei from Lattice QCD potentials for the N − ϕ , N − J / ψ , and N − η c interactions, we investigate the structure of the exotic nuclei Be ϕ 8 , Be J / ψ 8 , and Be η c 8 as α + α + M three-body systems ( M denotes the meson). The bound and resonant states are calculated consistently using the Gaussian expansion method, with resonances identified via the complex scaling method. For the α ϕ and α -charmonium interactions, a folding potential is constructed based on the Hadrons to Atomic nuclei from Lattice (HAL) QCD potentials and fitted to a Woods-Saxon form. We find that the ϕ meson exhibits a strong “gluelike” effect, binding the 0 1 + , 2 1 + , and 4 1 + resonant states of Be 8 into stable states and significantly reducing the α − α distance. In contrast, the interactions of J / ψ and η c with the nucleus are weaker, forming only shallow bound states with the 0 1 + state of Be 8 and even increasing the α − α separation. Notably, our analysis predicts weakly bound α − J / ψ states in the S

Source: Physical review. D/Physical review. D.

DOI: 10.1103/s3t5-78dj

Authors: Hao Zhou, Xiang Liu

Institutions: Institute of Modern Physics, Lanzhou University

Language: English

Topic: Nuclear physics research studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: National Natural Science Foundation of China, Natural Science Foundation of Gansu Province, Fundamental Research Funds for the Central Universities, Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center)