Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-12-04
Eur.Phys.J.C53:585-589,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
Accepted for publication in Eur.Phys.J.C
Scientific paper
10.1140/epjc/s10052-007-0500-7
In the framework of percolation of strings, the transverse momentum distributions in AA and hh collisions at all centralities and energies follow a universal behavior. The width of these distributions is related to the width of the distribution of the size of the clusters formed from the overlapping of the produced strings. The difference between the distributions for baryons and mesons originates in the fragmentation of clusters of several strings which enhance the particles with higher number of constituents. The results agree with SPS and RHIC data. The predictions for LHC show differences for baryons compared with RHIC. At LHC energies we obtain also a high pt suppression for pp high multiplicity events compared with pp minimum bias.
Cunqueiro Leticia
de Deus Jorge Dias
Ferreiro Elena G.
Pajares Carlos
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