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Femtoscopy in hydrodynamics-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.
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Submitted on : Thursday, July 27, 2006 - 9:39:42 AM
Last modification on : Wednesday, April 27, 2022 - 3:48:47 AM

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A. Kisiel, W. Florkowski, W. Broniowski, J. Pluta. Femtoscopy in hydrodynamics-inspired models with resonances. Physical Review C, American Physical Society, 2006, 73, pp.064902. ⟨10.1103/PhysRevC.73.064902⟩. ⟨in2p3-00087829⟩

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