I investigate the low-energy scattering and femtoscopic correlation functions of the $d\text{−}\mathrm{\Lambda }$, $d\text{−}\mathrm{\Sigma }$, and $d\text{−}\mathrm{\Xi }$ systems within a microscopic folding approach. The effective deuteron-hyperon interactions are constructed by folding the HAL-QCD hyperon-nucleon potentials with the deuteron wave function, while the spin and isospin structures are treated through Wigner-$6j$ recoupling coefficients. Using the resulting interactions, I calculate the scattering parameters and momentum correlation functions for all spin channels. No bound states are found for the $d\text{−}\mathrm{\Lambda }$, $d\text{−}\mathrm{\Sigma }$, or $d\text{−}\mathrm{\Xi }$ systems. Nevertheless, the $d\text{−}\mathrm{\Lambda }$ correlation exhibits a pronounced low-momentum enhancement associated with a large scattering length and a near-threshold pole, whereas the $d\text{−}\mathrm{\Sigma }$ correlation is suppressed by its predominantly repulsive interaction. The neutral $d\text{−}{\mathrm{\Xi }}^0$ system shows only a moderate enhancement, while the charged $d\text{−}{\mathrm{\Xi }}^{-}$ correlation is strongly amplified by the attractive Coulomb interaction. I further investigate feed-down effects from ${\mathrm{\Sigma }}^0$, $\mathrm{\Sigma }\left(1385\right)$, and $\mathrm{\Xi }$ decays using Monte Carlo response matrices and demonstrate that these decays clearly modify the observable $d\text{−}\mathrm{\Lambda }$ correlation. The results provide quantitative predictions for future femtoscopic measurements and establish deuteron-hyperon correlations as a sensitive probe of hyperon-nucleus interactions.

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• Hadron-hadron interactions
• Hypernuclei & mesic nuclei
• Low & intermediate energy heavy-ion reactions
• Particle correlations & fluctuations