Simultaneous Inference of Effective Range Parameters and EFT Truncation Uncertainty in ${}^3$He-$\alpha$ Scattering

Andrius Burnelis, Daniel R. Phillips

We extend previous halo effective field theory analyses of low-energy elastic scattering of ${}^3$He-${}^4$He, including the ${\frac{7}{2}}^{-}$ $f$-wave resonance as an explicit deg…