  The positive baryon-antibaryon production asymmetries that have been measured
at LHC are real demonstrations of string junction dynamics in the proton-proton
interactions of high energies. The topological presentation of pomeron exchange
in the proton-proton collision of high energy is cylinder diagram that is
covered 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 central
loop of two pomeron cylinders, that is similar to the pomeron diagram with the
handle or the pomeron torus. Taking into account that the junction of three
gluons (SJ) has the positive baryon number, as well as the antijunction is of
negative baryon charge, our pomeron construction can be covered by only a
certain number of hexagons that are constructed of 3 string junction and 3
antijunction vertices each. It is reasonable to expect that the dynamics of
rapidity gaps in DD should be determined by the number of hexagons on the
surface of pomeron torus. Therefore, the gap distribution in DD events has some
discrete structure in the region of large gaps. Moreover, the string-junction
conglomerate could be released after DD interaction as a metastable particle.
There is another multiparticle process with the pomeron loop configuration that
gives an event with doubled multiplicity in the central rapidity gap. It
corresponds to the cut along the pomeron loop. The events with the gap in DD as
well as the events with doubled multiplicity, each go on the level of 1.2% of
the inclusive production cross section.
