Understand
A proposal by L\"uscher enables one to compute the scattering phases of elastic two-body systems from the energy levels of the lattice Hamiltonian in a finite volume.
- In this work we generalize the formalism to S--, P-- and D--wave meson and baryon resonances, and general total momenta.
- Employing nonvanishing momenta has several advantages, among them making a wider range of energy levels accessible on a single lattice volume and shifting the level crossing to smaller values of $m_\pi L$.
Reading the bibliography…