Interaction of quark tubes in nucleus-nucleus scattering with energies of the NICA accelerator

Abstract

In proton-proton scattering during pomeron exchange, the corresponding quark tubes of a colored chromoelectric field are directed oppositely to each other and repel. In the nucleus-nucleus interaction, there are several pomeron exchanges; quark tubes begin at valence quarks and end at valence diquarks. Diquarks carry, on average, twice as much momentum as a valence quark. Accordingly, the length of a part of the diquark tube is longer than the end of the quark tube and decays later than the quark tube. The remaining parts of the diquark tubes are directed in one direction and are attracted. Therefore, a regime change will occur in the fast part of the spectrum in nucleus-nucleus scattering. For the NICA accelerator, nonvacuum regions are also important, the tubes of which are directed in the same way as diquark tubes. This leads to an increase in the attraction effect.