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The positive baryon-antibaryon production asymmetries that have been measuredat LHC are real demonstrations of string junction dynamics in the proton-protoninteractions of high energies. The topological presentation of pomeron exchangein the proton-proton collision of high energy is cylinder diagram that iscovered with quark-gluon net. I assume that the process of double diffraction(DD) can be presented as a diagram of one pomeron exchange with the centralloop of two pomeron cylinders, that is similar to the pomeron diagram with thehandle or the pomeron torus. Taking into account that the junction of threegluons (SJ) has the positive baryon number, as well as the antijunction is ofnegative baryon charge, our pomeron construction can be covered by only acertain number of hexagons that are constructed of 3 string junction and 3antijunction vertices each. It is reasonable to expect that the dynamics ofrapidity gaps in DD should be determined by the number of hexagons on thesurface of pomeron torus. Therefore, the gap distribution in DD events has somediscrete structure in the region of large gaps. Moreover, the string-junctionconglomerate could be released after DD interaction as a metastable particle.There is another multiparticle process with the pomeron loop configuration thatgives an event with doubled multiplicity in the central rapidity gap. Itcorresponds to the cut along the pomeron loop. The events with the gap in DD aswell as the events with doubled multiplicity, each go on the level of 1.2% ofthe inclusive production cross section.

Rapidity Gaps in Double Diffraction Events at LHC and Baryon-anti Baryon Torus