English

Constraints on $\Lambda N$ Effective Interactions from Mirror Hypernuclei in a Deformed Relativistic Hartree-Bogoliubov Model

Nuclear Theory 2025-06-17 v1

Abstract

We investigate the ground-state properties of four mirror hypernuclei pairs--Λ10^{10}_\LambdaBe-Λ10^{10}_\LambdaB, Λ12^{12}_\LambdaB-Λ12^{12}_\LambdaC, Λ16^{16}_\LambdaN-Λ16^{16}_\LambdaO, and Λ40^{40}_\LambdaK-Λ40^{40}_\LambdaCa--within the deformed relativistic Hartree-Bogoliubov framework, analyzing their connection to ΛN\Lambda N effective interactions. Systematic calculations with eight distinct effective interactions reveal linear correlations between mirror hypernuclei in Λ\Lambda separation energies and charge radii. The charge symmetry breaking effects, quantified through Λ\Lambda separation energy differences, exhibit a positive correlation with the SU(3) flavor symmetry violation. We emphasize that constraints derived from A=10A=10 and A=12A=12 hypernuclear pairs must explicitly incorporate rotational energy correction effects. Precision measurements of the (near) spherical A=16A=16 and A=40A=40 mirror systems are proposed as critical benchmarks for refining the isospin part of the hyperon-nucleon interactions.

Keywords

Cite

@article{arxiv.2506.13499,
  title  = {Constraints on $\Lambda N$ Effective Interactions from Mirror Hypernuclei in a Deformed Relativistic Hartree-Bogoliubov Model},
  author = {Yu-Ting Rong and Dan Yang and Cheng-Jun Xia and Ting-Ting Sun},
  journal= {arXiv preprint arXiv:2506.13499},
  year   = {2025}
}

Comments

10 pages, 5 figures