Baryon number transfer in hadronic interactions

Abstract

The process of baryon number transfer due to string junction propagation in rapidity is considered. It has a significant effect in the net baryon production in pp collisions at mid-rapidities and an even larger effect in the forward hemisphere in the cases of πp and γp interactions. The results of numerical calculations in the framework of the Quark-Gluon String model are in reasonable agreement with the data.

Production of secondaries in high-energy d+Au collisions

“…Following [24], for the calculation of these distributions in the QGSM we consider three different sources of the net baryon charge. The first one is the fragmentation of the diquark, that gives rise to a leading baryon carrying the initial SJ (Fig.…”

“…5c, both initial valence quarks recombine with sea antiquarks into mesons M, and a secondary baryon is formed by the SJ together with three sea quarks. The corresponding fragmentation functions for the secondary baryon B production can be written as follows (see [24] for more details):…”

“…The processes of baryon number transfer via string junction diffusion [24,[28][29][30][31][32][33] should also be accounted at these so high energies.…”

Midrapidity production of secondaries in pp collisions at RHIC and LHC energies in the quark–gluon string model

“…Moreover, this difference vanishes only very slowly when the energy increases. According to [16], we consider three different possibilities to obtain the net baryon charge. The first one is the fragmentation of the diquark giving rise to a leading baryon (Fig.…”

“…4c both initial valence quarks recombine with sea antiquarks into mesons M and a secondary baryon is formed by the SJ together with three sea quarks. The corresponding fragmentation functions for the secondary baryon B production can be written as follows (see [16] for more details):…”