System-size and centrality dependence of charged kaon and pion production in nucleus-nucleus collisions at 40A GeV and158A GeV beam energy

Abstract

Measurements of charged pion and kaon production are presented in centrality selected Pb+Pb collisions at 40A GeV and 158A GeV beam energy as well as in semi-central C+C and Si+Si interactions at 40A GeV. Transverse mass spectra, rapidity spectra and total yields are determined as a function of centrality. The system-size and centrality dependence of relative strangeness production in nucleus-nucleus collisions at 40A GeV and 158A GeV beam energy are derived from the data presented here and published data for C+C and Si+Si collisions at 158A GeV beam energy. At both energies a steep increase with centrality is observed for small systems followed by a weak rise or even saturation for higher centralities. This behavior is compared to calculations using transport models (UrQMD and HSD), a percolation model and the core-corona approach.

32 pages, 14 figures, 4 tables, typo table II corrected

References in corpus (4)

• Systematic Measurements of Identified Particle Spectra in pp, d+Au and Au+Au Collisions from STAR
• Core-Corona Separation in Ultra-Relativistic Heavy Ion Collisions
• Centrality dependence of proton and antiproton spectra in Pb+Pb collisions at 40A GeV and 158A GeV measured at the CERN SPS
• Centrality dependence of strangeness production in heavy-ion collisions as a geometrical effect of core-corona superposition

Cited by in corpus (15)

• A collision geometry-based 3D initial condition for relativistic heavy-ion collisions
• Exploring the partonic phase at finite chemical potential within an extended off-shell transport approach
• Centrality dependence of hadronization and chemical freeze-out conditions in heavy ion collisions at \sqrt s_{NN} = 2.76 TeV
• Longitudinal dynamics and particle production in relativistic nuclear collisions
• Rapidity scan with multistage hydrodynamic and statistical thermal models
• Parametrization of the nucleus-nucleus gamma-ray production cross sections below 100 GeV/nucleon: Subthreshold pions and Hard photons
• Measurements of ${\pi }^{\pm }$, $K^{\pm }$, $p$ and $\bar{p}$ spectra in ${}^{40}$Ar+${}^{45}$Sc collisions at 13$A$ to 150$A$ GeV/$c$
• System size dependence of particle-ratio fluctuations in Pb+Pb collisions at 158$A$ GeV
• On the Implications of Energy and Momentum Conservation for Particle Emission in A+A Collisions at SPS Energies
• Spectator induced electromagnetic effects in heavy-ion collisions and space-time-momentum conditions for pion emission
• Bulk medium properties of heavy-ion collisions from the beam energy scan with a multistage hydrodynamic model
• Can pion spectra in Pb+Pb collisions at CERN SPS energies be described by those in p+p reactions and energy-momentum conservation ? Rapidity distributions of pions in p+p and Pb+Pb collisions at CERN SPS energies
• Results on system size dependence of strangeness production in the CERN SPS energy range from NA61/SHINE
• Strange behavior of rapidity dependent strangeness enhancement of particles containing and not containing leading quarks
• Use of the Meta-analysis and Kolmogorov Criteria in the Finding of Singularities of a Nuclear Matter Created in Ultra Relativistic Nuclear Collisions