Femtoscopy in hydro-inspired models with resonances

Abstract

Effects of the choice of the freeze-out hypersurface and resonance decays on the HBT interferometry in relativistic heavy-ion collisions are studied in detail within a class of models with single freeze-out. The Monte-Carlo method, as implemented in THERMINATOR, is used to generate hadronic events describing production of particles from a thermalized and expanding source. All well-established hadronic resonances are included in the analysis as their role is crucial at large freeze-out temperatures. We use the two-particle method to extract the correlation functions, which allows us to study the Coulomb effects. We find that the pion HBT data from RHIC are fully compatible with the single freeze-out scenario, pointing at the shape of the freeze-out hypersurface where the transverse radius is decreasing with time. Results for the single-particle spectra for this situation are also presented. Finally, we present predictions for the kaon femtoscopy.

16 pages, 14 figures, Update: Added references, Corrected and added grant information in acknowledgements

References in corpus (3)

• Therminator: Thermal heavy-Ion generator
• Fitted HBT radii versus space-time variances in flow-dominated models
• The centrality dependence of transverse energy and charged particle multiplicity at RHIC: Statistical model analysis

Cited by in corpus (25)

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• Rapid hydrodynamic expansion in relativistic heavy-ion collisions
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• Soft heavy-ion physics from hydrodynamics with statistical hadronization - predictions for the Large Hadron Collider
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• Hydrodynamic predictions for Pb+Pb collisions at 2.76 TeV
• Rapidity-dependent spectra from a single-freeze-out model of relativistic heavy-ion collisions
• Event-by-event viscous hydrodynamics for Cu-Au collisions at 200GeV
• Coulomb Effects in Femtoscopy
• Early anisotropic hydrodynamics and the RHIC early-thermalization and HBT puzzles
• Interferometric signatures of the temperature dependence of the specific shear viscosity in heavy-ion collisions
• Rapidity-dependent chemical potentials in a statistical approach
• Blast-wave model description of the Hanbury-Brown--Twiss radii in pp collisions at LHC energies
• Two-particle Bose-Einstein correlations and their Lévy parameters in PbPb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Exploring Lifetime Effects in Femtoscopy
• Spheroidal expansion and freeze-out geometry of heavy-ion collisions in the few-GeV energy regime
• Space-time structure of particle emission and femtoscopy scales in ultrarelativistic heavy-ion collisions
• Transverse hydrodynamics and the early-thermalization problem at RHIC
• Towards reliable calculations of the correlation function
• Accessing the deuteron source with pion-deuteron femtoscopy in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• Three-Dimensional Two-Pion Emission Source at SPS: Extraction of Source Breakup Time and Emission Duration