Abstract
Hypernuclei ranged from light to heavy mass are systematically investigated using a relativistic mean-field (RMF) model with a novel proposed ωΛΛ tensor coupling interaction PK1-Y1. The tensor coupling effect on core polarization, and the orbital contribution to hyperon current are discussed. Contributions to the magnetic moment from pΛ and n −1 Λ systems are found to be opposite. An expression of the magnetic moment under perturb treatment is improved with an ωΛΛ tensor coupling and the core-polarized magnetic moment μ pol. D is found to be approximately proportional to the coupling strength g ωN · g 2ωλ . Self-consistent calculations under a perturb treatment show a semi-linear relationship as μ pol. D ∼ g ωλ when g ωN is fixed.
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Wang, X.S., Sang, H.Y., Lü, H.F. et al. Systematic study of hypernuclear magnetic moments under a perturb treatment. Eur. Phys. J. A 49, 101 (2013). https://doi.org/10.1140/epja/i2013-13101-1
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DOI: https://doi.org/10.1140/epja/i2013-13101-1