Abstract
Gaussian Expansion Method has been applied to four-body calculations of \({^4_{\Lambda}{\rm H}}\) and \({^4_{\Lambda}{\rm He}}\), and four-body calculation of 4He tetramer. We found that Λ N− Σ N coupling is important to make bound A = 4 hypernuclei. The binding energies of the tetramer ground state and excited states are obtained as 558.98 and 127.33 mK.
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Hiyama, E., Kamimura, M. Four-Body Structure of Λ Hypernuclei and 4He Tetramer System. Few-Body Syst 54, 737–744 (2013). https://doi.org/10.1007/s00601-012-0471-6
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DOI: https://doi.org/10.1007/s00601-012-0471-6