Extreme breathing excitations of atomic nuclei

In the present paper collective breathing nuclear states, that appear in the framework of the coherent density fluctuation model (CFM) are taken into consideration. Their excitation energies are large and comparable with the binding nuclear energies. The basic CFM equation obtain in the generator-coordinate method. The possible mechanisms for the excitations for the excitations of the breathing states are deeply inelastic interactions of particles (e-, p, etc.) with nuclei, the π--absorbtion from nuclei. It should be noted, that the energy of the Roper-resonance is comparable with the breathing nuclear excitation energies. Therefore the decay of this resonance, in principle, can lead to the breathing nuclear vibrations. The results of this work, as well as the results of some papers, obtained by means of a similar method but related to different quantum-mechanical systems, give an evidence, that the structure in detail and the character of the forces between the particles are not decisive for the considered type of excitations