Strength of pairing interaction for hyperons in multistrangeness hypernuclei

Abstract

Pairing correlations play a very important role in atomic nuclei. Although several effective pairing interactions have been used in mean field calculations for nucleons, little is known about effective pairing interactions for hyperons. Based on the quark model, we propose a relationship between effective pairing interactions for hyperons and for nucleons; e.g., for $\Lambda$s, the strength of the pairing interaction is 4/9 of that for nucleons. A separable pairing force of finite range which has been widely applied to describing pairing correlations in normal nuclei is used to investigate pairing effects in multi-$\Lambda$ Ca, Sn and Pb hypernuclei.

17 pages, 3 figures; Phys. Lett. B, in press

References in corpus (13)

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Cited by in corpus (13)

• New effective interactions for hypernuclei in density dependent relativistic mean field model
• Angular momentum and parity projected multidimensionally constrained relativistic Hartree-Bogoliubov model
• Microscopic study of higher-order deformation effects on the ground states of superheavy nuclei around ${}^{270}$Hs
• Effects of $\bm\la$ hyperons on the deformations of even-even nuclei
• Quenched Λ spin-orbit splitting by relativistic Fock diagram in single-Λ hypernuclei
• Density-dependent relativistic mean field approach and its application to single-$\Lambda$ hypernuclei in Oxygen isotopes
• Ground state and fission properties of even-$A$ uranium isotopes from multidimensionally-constrained relativistic mean field model
• Exploring nuclear force with pulsar glitch observation
• Impact of $\Xi$-Hypernuclear Constraints on Relativistic Equation of State and Properties of Hyperon Stars
• Isospin-density dependent pairing from infinite nuclear matter to finite nuclei
• Effects of Finite Temperature and Pairing Correlations in Multi-$\Lambda$ Hypernuclei
• Tetrahedral shape and Lambda impurity effect in ${}^{80}$Zr with a multidimensionally constrained relativistic Hartree-Bogoliubov model
• Implication of odd-even staggering in the charge radii of calcium isotopes