Speaker
Description
The thermodynamical approach to light (hyper)nuclei production in heavy-ion collisions and its implementation in the new version of the generator THESEUS (Three-fluid Hydrodynamics-based Event Simulator Extended by UrQMD final State interaction) are reviewed.
In this approach light (hyper)nuclei are treated on the equal basis with hadrons, i.e. using only thermodynamic quantities deduced from simulations within 3FD model (3-Fluid Dynamics).
Production of various species of light (hyper)nuclei (deuterons, tritons, $^3$He, $^4$He, $^3_{\Lambda}$H and $^4_{\Lambda}$He nuclei) is studied by means of the new version of THESEUS.
The performed modeling demonstrated the efficiency of the thermodynamical approach: it showed reasonable agreement of the obtained results with available experimental data of the NA49 and STAR collaborations in the energy range $\sqrt{s_{NN}}$ from 3 to 19.6 GeV. A good description of rapidity distributions, $p_T$- and $m_T$-spectra, and particle ratios ($d/p$, $t/p$, $t/d$ and $tp/d^2$) is obtained. Collective flow of light (hyper)nuclei is also studied.
Modeling of the hypernuclei production also gives good description of experimental data.
