Emission source functions in heavy ion collisions

Abstract

The three-dimensional pion and kaon emission source functions are extracted from the HKM model simulations of the central Au+Au collisions at the top RHIC energy $\sqrt{s_{NN}}=200$ GeV. The model describes well the experimental data, previously obtained by the PHENIX and STAR collaborations using the imaging technique. In particular, the HKM reproduces the non-Gaussian heavy tails of the source function in the pair transverse momentum (out) and beam (long) directions, observed in the pion case and practically absent for kaons. The role of the rescatterings and long-lived resonances decays in forming of the mentioned long range tails is investigated. The particle rescatterings contribution to the out tail seems to be dominating. The model calculations also show the substantial relative emission times between pions (with mean value 14.5 fm/c in LCMS), including those coming from resonance decays and rescatterings. The prediction is made for the source functions in the LHC Pb+Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV, which are still not extracted from the measured correlation functions.

23 pages, 4 figures

References in corpus (12)

• GLISSANDO: GLauber Initial-State Simulation AND mOre
• Therminator: Thermal heavy-Ion generator
• Uniform description of bulk observables in the hydrokinetic model of A+A collisions at RHIC and LHC
• Hydro-kinetic approach to relativistic heavy ion collisions
• Evidence for a long-range component in the pion emission source in Au+Au collisions at sqrt(s_NN) = 200 GeV
• Source breakup dynamics in Au+Au Collisions at sqrt(s_NN)=200 GeV via three-dimensional two-pion source imaging
• Kaon and pion femtoscopy at the highest energies available at the BNL Relativistic Heavy Ion Collider (RHIC) in a hydrokinetic model
• Analyzing Correlation Functions with Tesseral and Cartesian Spherical Harmonics
• Correlation femtoscopy of small systems
• Freeze-out Dynamics via Charged Kaon Femtoscopy in sqrt(sNN)=200 GeV Central Au+Au Collisions
• Effects of non-causal artifacts in a hadronic rescattering model for RHIC collisions
• PHENIX measurements of 3D emission source functions in Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV

Cited by in corpus (11)

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• On $m_T$ dependence of femtoscopy scales for meson and baryon pairs
• Extracting $p\Lambda$ scattering lengths from heavy ion collisions
• $K^{\ast }(892)$ and $\varphi (1020)$ production and their decay into the hadronic medium at the Large Hadron Collider
• Coulomb Corrections for Bose-Einstein Correlations from One- And Three-Dimensional Lévy-Type Source Functions
• Particle production at energies available at the CERN Large Hadron Collider within evolutionary model
• Kaon and pion maximal emission times extraction from the femtoscopy analysis of $5.02A$ TeV LHC collisions within the integrated hydrokinetic model
• Sum Rule of Femtoscopic Correlation Function
• Space-time structure of particle emission and femtoscopy scales in ultrarelativistic heavy-ion collisions
• Proton-lambda correlation functions at the LHC with account for residual correlations
• Kaon femtoscopy in $\sqrt{s_{NN}}$=200 GeV central Au+Au collsions at STAR