What Does Free Space Lambda-Lambda Interaction Predict for Lambda-Lambda Hypernuclei?
Abstract
Data on Lambda-Lambda hypernuclei provide a unique method to learn details on the strangeness S =-2 sector of the baryon-baryon interaction. From the free space Bonn-Julich 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 Lambda-Lambda hypernuclei. After including short--range (Jastrow) and RPA correlations, we find masses for these Lambda-Lambda 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-Julich OBE potentials to the S =-2 channel.
Keywords
Cite
@article{arxiv.nucl-th/0110046,
title = {What Does Free Space Lambda-Lambda Interaction Predict for Lambda-Lambda Hypernuclei?},
author = {C. Albertus and J. E. Amaro and J. Nieves},
journal= {arXiv preprint arXiv:nucl-th/0110046},
year = {2008}
}
Comments
4 pages, 2 figures, revtex4 style. Minor changes in conclusions. References updated. Accepted in Phys. Rev. Lett