A self-consistent equation of motion multiphonon method for even mass nuclei

In last years, several methods for microscopic calculations of the fine structure of giant and pygmy resonances were developed. Among them, the Equation-of-Motion Phonon Method (EMPM) in particle-hole formulation was applied for the investigation of fine structure of E1 strength in ¹⁶O and heavier nuclei ¹³²Sn, ²⁰⁸Pb. Recently, EMPM was extended for open shell systems and applied to neutron-rich nucleus ²⁰O. It was shown, that multiphonon states enhance enormously the density of levels and fragment E1 strength, consistently with the data. The method is fully self-consistent and designed for general two-body Hamiltonian. We will review recent results based on modern chiral nucleon-nucleon interaction NNLOopt. Further, we will discuss the importance of two-phonon components in the description of ground states of spherical closed-shell nuclei within EMPM. This document is composed of an abstract and the slides of the presentation. (author)