Probing $ φ$N interaction through bound states of $_φ^{6}\textrm{He} $ mesic nuclei within $ φ\textrm{N-}α$ cluster model

Abstract: The spin dependence of the $ \phi $N interaction is explored through the bound states of $ \phi\textrm{N-}\alpha $ mesic nuclei with $\alpha$ being a spectator to attract the $ \phi $N pair without changing its spin structure. The bound state of $ {\phi}^{6}\textrm{He} $ mesic nuclei is calculated within the framework of the developed three-body cluster model by solving the Faddeev equations in the method of hyperspherical harmonics (HH) expansions. The calculations are done by employing the state-of-the-art $ \phi $N potential obtained from lattice QCD calculations and correlation function analysis for the $^{4}S{3/2}$ and $^{2}S_{1/2}$ channels. The $ \phi\alpha $ potential is constructed through a folding procedure of the spin-averaged $ \phi $N interaction with the matter distribution of $ ^{4}\textrm{He} $. And for N$\alpha$ potential two common types of N$\alpha$ interactions are taken from the literature with central and spin-orbit components. The central binding energies of the $ \phi\textrm{N-}\alpha $ bound states in the spin $ 3/2\left(1/2\right) $ channel are found to be $\sim 10 \left(25\right) $ and $ 11 \left(13\right) $ MeV at Euclidean times $ t/a=12 $ and $14$, respectively. As well as, the corresponding nuclear matter radii are estimated to be $\sim 4.5 \left(1.7\right) $ and $ 4.6 \left(1.8\right) $ fm.