Constraints on ΛN Effective Interactions from Mirror Hypernuclei in a Deformed Relativistic Hartree-Bogoliubov Model

2025/06/16 by Yu-Ting Rong, Dan Yang, Rong, Yu-Ting +5
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #Nuclear Theory (nucl-th) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2506.13499

openalex publication_date 2025/06/16 · openalex created_date 2025/10/13 · openalex updated_date 2026/07/28

Abstract

We investigate the ground-state properties of four mirror hypernuclei pairs--¹⁰_ΛBe-¹⁰_ΛB, ¹²_ΛB-¹²_ΛC, ¹⁶_ΛN-¹⁶_ΛO, and ⁴⁰_ΛK-⁴⁰_ΛCa--within the deformed relativistic Hartree-Bogoliubov framework, analyzing their connection to ΛN effective interactions. Systematic calculations with eight distinct effective interactions reveal linear correlations between mirror hypernuclei in Λ separation energies and charge radii. The charge symmetry breaking effects, quantified through Λ separation energy differences, exhibit a positive correlation with the SU(3) flavor symmetry violation. We emphasize that constraints derived from A=10 and A=12 hypernuclear pairs must explicitly incorporate rotational energy correction effects. Precision measurements of the (near) spherical A=16 and A=40 mirror systems are proposed as critical benchmarks for refining the isospin part of the hyperon-nucleon interactions.

Citations

• Charge radii of ^11-16C, ^13-17N and ^15-18O determined from their charge-changing cross-sections and the mirror-difference charge radii
• Halos in medium-heavy and heavy nuclei with covariant density functional theory in continuum
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• Relativistic continuum Hartree Bogoliubov theory for ground-state properties of exotic nuclei
• The Ame2003 atomic mass evaluation
• Self-consistent mean-field models for nuclear structure
• Multiply Strange Nuclear Systems

Related

• Charge symmetry breaking effect in mirror Λ hypernuclei with Skyrme-Hartree-Fock model
• Binding, bonding and charge symmetry breaking in Λ-hypernuclei
• Hypernuclear structure with the new leading order covariant chiral hyperon-nucleon force
• Towards Hypernuclei from Nuclear Lattice Effective Field Theory
• Constraints on the Lambda-neutron interaction from charge-symmetry breaking of A=4 hypernuclei