Transport model study of the $m_T$-scaling for $\Lambda$, K, and $\pi$ HBT-correlations

Abstract

Based on the microscopic transport model UrQMD in which hadronic and string degrees of freedom are employed, the HBT parameters in the longitudinal co-moving system are investigated for charged pion and kaon, and $\Lambda$ sources in heavy ion collisions (HICs) at SPS and RHIC energies. In the Cascade mode, $R_O$ and the $R_L$ at high SPS and RHIC energies do not follow the $m_T$-scaling, however, after considering a soft equation of state with momentum dependence (SM-EoS) for formed baryons and a density-dependent Skyrme-like potential for ``pre-formed'' particles, the HBT radii of pions and kaons and even those of $\Lambda$s with large transverse momenta follow the $m_T$-scaling function $R=3/\sqrt{m_T}$ fairly well.

6 pages, 5 figs

References in corpus (7)

• Causal Viscous Hydrodynamics for Central Heavy-Ion Collisions II: Meson Spectra and HBT Radii
• The effect of "pre-formed" hadron potentials on the dynamics of heavy ion collisions and the HBT puzzle
• Neutral Kaon Interferometry in Au+Au collisions at sqrt(s_NN) = 200 GeV
• Analyzing Correlation Functions with Tesseral and Cartesian Spherical Harmonics
• Transport model analysis of particle correlations in relativistic heavy ion collisions at femtometer scales
• Transport model analysis of the transverse momentum and rapidity dependence of pion interferometry at SPS energies
• Pion freeze-out as seen through HBT correlations in heavy ion collisions from FAIR/AGS to RHIC energies

Cited by in corpus (8)

• Resolving the HBT Puzzle in Relativistic Heavy Ion Collision
• Effects of a phase transition on HBT correlations in an integrated Boltzmann+Hydrodynamics approach
• Examination of scaling of Hanbury-Brown--Twiss radii with charged particle multiplicity
• A model comparison of resonance lifetime modifications, a soft equation of state and non-Gaussian effects on $\pi -\pi$ correlations at FAIR/AGS energies
• Proton correlations and apparent intermittency in the UrQMD model with hadronic potentials
• Light Nuclei Femtoscopy and Baryon Interactions in 3 GeV Au+Au Collisions at RHIC
• Unlocking the initial neutron density distribution from the two-pion HBT correlation function in heavy-ion collisions
• Extracting temperature and transverse flow by fitting transverse mass spectra and HBT radii together