Sensitivity of Λ single-particle energies to the ΛN spin-orbit coupling and to nuclear core structure in p-shell and sd-shell hypernuclei

Abstract

We introduce a mean field model based on realistic 2-body baryon interactions and calculate spectra of a set of p-shell and sd-shell Λ hypernuclei - 13ΛC, 17ΛO, 21ΛNe, 29ΛSi and 41ΛCa. The hypernuclear spectra are compared with the results of a relativistic mean field (RMF) model and available experimental data. The sensitivity of Λ single-particle energies to the nuclear core structure is explored. Special attention is paid to the effect of spin-orbit ΛN interaction on the energy splitting of the Λ single particle levels 0p3/2 and 0p1/2. In particular, we analyze the contribution of the symmetric (SLS) and the anti-symmetric (ALS) spin-orbit terms to the energy splitting. We give qualitative predictions for the calculated hypernuclei.

References in corpus (3)

• A self-consistent study of multipole response in neutron-rich nuclei using a modified realistic potential
• Quasiparticle Random Phase Approximation with Interactions from the Similarity Renormalization Group
• Dipole response in 208Pb within a self-consistent multiphonon approach

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• Study of light $\varphi$-mesic nuclei with HAL QCD $\varphi N$ interactions
• Effect of a realistic three-body force on the spectra of medium-mass hypernuclei
• Structure of the ground and excited states in ${}_{\Lambda }^9$Be nucleus