title: What does the free space Lambda Lambda interaction predict for Lambda Lambda hypernuclei?
abstract: Data on LambdaLambda hypernuclei provide a unique method to learn details about the strangeness S = -2 sector of the baryon-baryon interaction. From the free space Bonn-Jülich potentials, determined from data on baryon-baryon scattering in the S = 0,-1 channels, we construct an interaction in the S = -2 sector to describe the experimentally known LambdaLambda hypernuclei. After including short-range (Jastrow) and RPA correlations, we find masses for these LambdaLambda hypernuclei in a reasonable agreement with data, taking into account theoretical and experimental uncertainties. Thus, we provide a natural extension, at low energies, of the Bonn-Jülich one-boson exchange potentials to the S = -2 channel.
authors.affiliation: Departamento de Física Moderna, Universidad de Granada, E-18071 Granada, Spain.
authors.forename: C
authors.initials: C
authors.lastname: Albertus
authors.forename: J E
authors.initials: JE
authors.lastname: Amaro
authors.forename: J
authors.initials: J
authors.lastname: Nieves