Tunneling through Color Glass Condensate and True Black Disks

We discover new vacuum solutions of the JIMWLK equation, which correspond to center of a gauge group. We improve the CGC model by an explicit usage of a density matrix. Studying scattering of CGC states in an external color field, we observe that an amplitude is naturally expressed via group characters. We construct an example that shows how new thin effects may be potentially observed in peripheral collisions. We prove that at any parton density a gluonic CGC state does not become a true black disk. We find a wave function of a true black and show that it necessarily contains many quarks. This result corresponds to necessity of non-vacuum reggeon loops in a formation of a true black disk.