Manifestation of the quark degrees of freedom in nuclei

Manifestation of quark degrees of freedom in nuclei from the view point of multiquark systems (MQS) in a cluster model is considered. A system for nucleon and quark channel binding in nuclei is formulated and impurities of 6-quark (q6) systems in a deuteron are calculated. Manifestation of q6 impurity in 2D and 3He form factors and MQS contribution in processes of cumulative meson production in pA → π+ (180 deg)+, pD → π+ (180 deg), pA → π+ (90 deg) reactions and in deep-inelastic μ-meson scattering on nuclei are considered. The calculated and experimental data are compared. Aspects of further theoretical studied in the MQS relativistic theory are determined