Kaon and Pion production in relativistic heavy-ion collisions

Abstract

The BUU transport model is applied to study strangeness and pion production in nucleus-nucleus collisions. Starting from proton induced reactions, we further investigate Si+Au, Au+Au and Pb+Pb collisions in the energy range between 2 and 40 A$\cdot$GeV and compare with data and with other transport calculations. The $q\bar{q}$ annihilation, or resonance, channel simulated by the string model in meson-nucleon collisions at $\sqrt{s}>2$ GeV is introduced. The importance of this channel for a good description of the proton-nucleus data on $K^{+}$ production is demonstrated. We, furthermore, show that the meson-meson collisions contribute significantly to the $K\bar{K}$ production in heavy-ion collisions above 5 A GeV and improve an agreement with data on the $K^{+}/{\pi }^{+}$ ratio. Finally, we study the influence of the in-medium modifications of the FRITIOF model on the pion and kaon production.

20 pages, 25 figures, added statistical errors in figures

References in corpus (2)

• Strangeness dynamics and transverse pressure in relativistic nucleus-nucleus collisions
• Hadron attenuation in deep inelastic lepton-nucleus scattering

Cited by in corpus (25)

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• Electron- and neutrino-nucleus scattering from the quasielastic to the resonance region
• Charged Current Neutrino Nucleus Interactions at Intermediate Energies
• Dynamical phase trajectories for relativistic nuclear collisions
• Dynamically integrated transport approach for heavy-ion collisions at high baryon density
• Alternative Scenarios of Relativistic Heavy-Ion Collisions: I. Baryon Stopping
• Neutral current neutrino-nucleus interactions at intermediate energies
• Alternative Scenarios of Relativistic Heavy-Ion Collisions: II. Particle Production
• Baryon Stopping as a Probe of Deconfinement Onset in Relativistic Heavy-Ion Collisions
• Alternative Scenarios of Relativistic Heavy-Ion Collisions: III. Transverse Momentum Spectra
• Three-body collisions in Boltzmann-Uehling-Uhlenbeck theory
• Dynamical simulation of bound antiproton-nuclear systems and observable signals of cold nuclear compression
• Measurement of charged pions in 12C + 12C collisions at 1A GeV and 2A GeV with HADES
• Baryon Stopping in Heavy-Ion Collisions at E_{lab}= 2--160 GeV/nucleon
• Transverse-Mass Effective Temperature in Heavy-Ion Collisions from AGS to SPS
• Possibility of cold nuclear compression in antiproton-nucleus collisions
• Enabling comparison of UrQMD with Geant4 hadronic models
• Strangeness Production in low energy Heavy Ion Collisions via Hagedorn Resonances
• Transverse-Mass Spectra in Heavy-Ion Collisions at energies E_{lab} = 2--160 GeV/nucleon
• Baryon stopping as a signal of the mixed phase onset
• Isospin effects in a covariant transport approach to spallation reactions: Analysis of $p+Fe$ and $Pb$ reactions at 0.8, 1.2 and 1.6 GeV
• An Effective Model for Glueballs and Dual Superconductivity at Finite Temperature
• Kaon production from 1 to 40 A GeV
• Particle Production at CBM in a Thermal Model Approach
• Hadronic Rescattering in pA and AA Collisions