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arXiv · 1309.1484

$ΛΛ$ interaction and hypernuclei

C. Albertus·J. E. Amaro·J. Nieves
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Abstract

Data on $ΛΛ$ 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 LL hypernuclei. After including short-range (Jastrow) and RPA correlations, we find masses for these LL 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.

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C. Albertus, J. E. Amaro, J. Nieves. 2013-09-05. $ΛΛ$ interaction and hypernuclei. https://arxiv.org/abs/1309.1484

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