Universality of the transverse momentum distributions in the framework of percolation of strings

2003/04/30 by J. Dias de Deus, E. G. Ferreiro, C. Pajares +1 · 6 citations
Physics and Astronomy · #Cluster size #Distribution (mathematics) #Dust and Plasma Wave Phenomena #High-Energy Particle Collisions Research #Multiplicity (mathematics) #Percolation (cognitive psychology) #Spectral line #Theoretical and Computational Physics #Transverse plane #Universality (dynamical systems) #hep-ph

paper · pdf · doi:10.1140/epjc/s2005-02127-y

published as Eur.Phys.J. C40 (2005) 229-241 · 45 pages, latex, 11 postscript figures. Final version, accepted in EJPC

arxiv created 2005/01/19 · openalex publication_date 2005/02/14 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

In the framework of percolation of color sources, the transverse momentum distribution in heavy ion and p+p collisions at all centralities and energies are shown to follow a universal behaviour. The width of the distribution depends on the fluctuations of the number of color sources per cluster. At low densities, there are only independent single color sources, no fluctuations occurs and the distribution is described by a single exponential. At very high densities, only one cluster of many color sources appears and therefore there are not fluctuations either and the hardness of the distribution is suppressed. The Cronin effect in this framework is due to a maximum of the fluctuations which decreases as the density increases. We obtain a good agreement with experimental data including the low p_T behaviour and the spectra for different particles. We show that the transverse momentum and multiplicity distributions are related to each other in a defined way. This point is satisfied by the experimental data on p+p collisions at different energies.

Citations

• Quantization of non-Abelian gauge theories
• Transverse momentum fluctuations and percolation of strings
• Cronin Effect in Hadron Production Off Nuclei
• Transverse Momentum Distributions and Their Forward-Backward Correlations in the Percolating Color String Approach
• On Gauge Invariance and Vacuum Polarization
• Schwinger model and string percolation in hadron–hadron and heavy ion collisions
• Intrinsic broadening of the transverse momentum spectra in ultrarelativistic heavy-ion collisions?
• Charged hadron transverse momentum distributions in Au+Au collisions at sNN=200 GeV
• Measurement of jet modification at RHIC

Cited by

• Universal scaling of strange particle pT spectra in pp collisions
• Production of φ Mesons on Nuclear Targets in the Quark–Gluon String Model
• Transverse-momentum fluctuations in relativistic heavy-ion collisions from event-by-event viscous hydrodynamics
• Thermal behavior and entanglement in Pb-Pb and p−p collisions
• Universal behavior of transverse momentum distributions of baryons and mesons in the framework of percolation of strings
• Description of ϕ-meson production in hadronic and nuclear collisions at very high energies