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arXiv · 2406.13899

Faddeev calculations of low-energy $\Lambda$-deuteron scattering and momentum correlation function

M. Kohno·H. Kamada
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Abstract

Faddeev calculations of low-energy $\Lambda$-deuteron elastic scattering are performed up to $E_{cm}=20$ MeV across the deuteron threshold. Phase shifts of the $s$-wave with $J=1/2$ and $J=3/2$ are calculated using strangeness $S=-1$ hyperon-nucleon interactions in chiral effective field theory NLO13 and NLO19 parametrized by the J{\"u}lich-Bonn group. Effective range parameters, such as a scattering length and an effective range, are determined through the calculated phase shifts. $\Lambda$-deuteron momentum correlation functions are evaluated using the $\Lambda$-deuteron relative wave function constructed from half-off-shell $t$-matrices. They are compared with those evaluated using an approximate formula.

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M. Kohno, H. Kamada. 2024-06-20. Faddeev calculations of low-energy $\Lambda$-deuteron scattering and momentum correlation function. https://doi.org/10.1103/physrevc.110.044005

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