Discrete and continuous spectrum of lightest hypernuclei

2025/09/02 by N. Kalzhigitov, Kalzhigitov, N. K., S. Amangeldinova +5
Physics and Astronomy · #FOS: Physical sciences #High-Energy Particle Collisions Research #Nuclear Theory (nucl-th) #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2509.01932

openalex publication_date 2025/09/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We analyze the peculiarities of the interaction of the lambda hyperon with s-shell nuclei. The spectra of bound and scattering states are studied in the hypernuclei _Λ²H, _Λ³H, _Λ⁴H, _Λ⁴He and _Λ⁵He, which is considered as two-cluster configurations p+Λ, d+Λ, ³H+Λ, ³He+Λ, ⁴He+Λ, respectively. The explicit form of the folding potentials of such an interaction is presented in coordinate and oscillator representations, which help us to understand the structure of hypernuclei of interest. We compare energies of bound states, phase shifts of the elastic lambda hyperon, and neutron scattering from s-shell nuclei.

Citations

• Perspectives for hyperon and hypernuclei physics
• Light Λ hypernuclei studied with chiral hyperon-nucleon and hyperon-nucleon-nucleon forces
• Resonance structure of ⁸Be with the two-cluster resonating group method

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