Binding Energies of Double Hypernuclei aroundA= 10 and Λ-Λ Interaction Parameter

Double Λ Hypernuclei and the Λ-λ Interaction. *

We approximate the double Λ hypernuclei by systems composed by two interacting Λ’s moving in the mean field potential created by the nuclear cores. The Λ-core potentials are adjusted to reproduce the binding energies of the corresponding single Λ hypernuclei [1]. A σ-ω meson exchange potential [2] is used for the Λ-Λ interaction. We apply both the Hartree-Fock (HF) and variational approximation...

Weak Transition in Double-Λ Hypernuclei

We calculate the ΛΛ → Y N transition rate of 6 ΛΛHe by the hybrid picture, the π and K exchanges plus the direct quark processes. It is found that the hyperon-induced decay is weaker than the nucleon-induced decay, but the former may reveal the short-range mechanism of the weak transition and also give a clear signal of the strong ∆I = 3/2 transition. The ΛΛ → YN transition in double-Λ hypernuc...

00 2 Λ + c - and Λ b - hypernuclei

Double-Λ hypernuclei in the relativistic mean-field theory

We study the properties of double-Λ hypernuclei in the relativistic mean-field theory, which has been successfully used for the description of stable and unstable nuclei. With the meson-hyperon couplings determined by the experimental binding energies of single-Λ hypernuclei, we present a self-consistent calculation of double-Λ hypernuclei in the relativistic mean-field theory, and discuss the ...

Binding Energy of Λ Hypernuclei from Realistic Y N Interactions

s− and p−wave Λ single–particle energies are obtained for a variety of Λ hyper-nuclei from the relevant self–energy constructed within the framework of a pertur-bative many–body approach. Results are presented for present realistic hyperon– nucleon interactions such as Jülich B and Nijmegen SC models. Effects of the non–locality and energy–dependence of the self–energy on the bound states are i...