Structure of the $\mathbf{\Lambda }(1405)$ from Hamiltonian effective field theory

Zhan-Wei Liu, Jonathan M. M. Hall, Derek B. Leinweber +2

The pole structure of the $\Lambda (1405)$ is examined by fitting the couplings of an underlying Hamiltonian effective field theory to cross sections of $K^{-}p$ scattering in the infinite…