The nuclear matter modification at intermediate energies

A new hypothesis on hadron interactions with nuclear matter is discussed. It is supposed that the well-known particles and resonances as well as nucleons might serve as a target in the nucleus. The experimental data on CC, dC, CTa, pC interactions at 4.2 GeV/c/nucleon are used for the testing of the hypothesis. A certain suppression of production of the DELTA(1232) P sub 3 sub 3 , (1440) P sub 1 sub 1 isobars and rho mesons is observed in these interactions, compared to the nucleon-nucleon interactions. It may be caused by the formation of the so-called dense 'resonance matter' in the nucleus. Special experiments with multiple rising statistics are required to examine the hypothesis