Speaker
Description
Lattice QCD calculations of many-body nuclear systems are prohibitively expensive due to the signal-to-noise problem. An alternative framework to compute nuclear observables from first principles is to compute few-nucleon quantities and match them directly to pionless EFT to obtain LECs, which can then be used in nuclear many-body methods. This work employs pionless EFT at the physical pion mass, with matching data (two-body scattering lengths, and three-body binding energies) taken from experiment. We optimize wavefunctions of correlated gaussians via gradient-based differential programming at LO in pionless FVEFT, with NLO corrections incorporated perturbatively. Preliminary results indicate broad agreement with binding energies for up to 12 nucleons, demonstrating viability of this approach for larger nuclei.