Speaker
Description
Two-particle femtoscopy is a powerful technique for investigating both the emission source and the interaction potentials between particle pairs. The primary observable in femtoscopy is the two-particle correlation function, which provides crucial insights into the space-time characteristics of the emitting source, as well as the effects of final-state interactions. By analyzing correlations between non-identical particles, particularly hyperon-nucleon (Y-N) pairs like Λ-p, we gain valuable information that can help address the neutron star puzzle and deepen our understanding of the equation of state (EoS) of dense stellar objects. In this study, we present the femtoscopic correlations between proton and lambda pairs in the Au+Au events simulated using the Ultra-relativistic Quantum Molecular Dynamics (UrQMD) model at $\sqrt{s_{NN}}$ = 200 GeV analyzed with the CRAB (Correlation AfterBurner) model by incorporating final-state interactions between the pairs that would be present in real data. The p-Λ correlation function obtained from CRAB afterburner will be fitted using models like Lednicky-Lyuboshitz (L-L fit), allowing extraction of critical interaction parameters such as the particle emission source size, scattering length ($ f_{0} $), and effective range ($ d_{0} $) of the Y-N interactions in the high energy nuclear collisions. Moreover, the model results will be compared with the published STAR results to validate the UrQMD simulations against data from experiments.
| Field of contribution | Theory |
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