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What Does Free Space Lambda-Lambda Interaction Predict for Lambda-Lambda Hypernuclei?

C. Albertus·J. E. Amaro·J. Nieves
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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.

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C. Albertus, J. E. Amaro, J. Nieves. 2002-06-03. What Does Free Space Lambda-Lambda Interaction Predict for Lambda-Lambda Hypernuclei?. https://doi.org/10.1103/physrevlett.89.032501

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