Elastic pion-nucleon scattering in chiral perturbation theory: Explicit $\Delta$(1232) degrees of freedom

14 Jan 2020 Siemens Dmitrij

For the first time, elastic pion-nucleon scattering is analyzed in the framework of chiral perturbation theory up to fourth order with explicit $\Delta$ degrees of freedom. The analysis is performed within the heavy-baryon expansion as well as in a covariant approach based on an extended on-mass-shell renormalization scheme... (read more)

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Categories


  • NUCLEAR THEORY
  • HIGH ENERGY PHYSICS - PHENOMENOLOGY