Elastic proton scattering on tritium below the n-3He threshold

Elastic proton scattering on the H-3 nucleus is studied between p-H-3 and n-He-3 thresholds, in the energy region where the first excited state of the alpha particle is embedded in the continuum. Faddeev-Yakubovski equations are solved in configuration space by fully considering effects from isospin breaking and rigorously treating the Coulomb interaction. Different realistic nuclear Hamiltonians are tested, elucidating open problems in the description of the nuclear interaction.