XXV DAE-BRNS High Energy Physics Symposium 2022

Thermalization in 3.0 GeV fixed target collisions from the RHIC Beam Energy Scan

12 Dec 2022, 14:00

1h

Foyer (IISER Mohali)

Poster Poster - 1

Speaker

FNU Rutik

Description

We report modifications to the traditional Blast wave fit to momentum spectra of particles at mid rapidity emitted from central Au+Au collisions at √sN N = 3.0 GeV in STAR, and compare to HADES Collaboration results at √sN N = 2.4 GeV. We explore a scenario of a
Gaussian shape of emission source in rapidity, which modifies the boost invariance assumption of the traditional Blast wave model. Such a modification is to be expected when the produced fireball is fully hadronic and the ideal hydrodynamics breaks down. The modified Blast wave model seems to be able to unify the π/K/p spectra to common temperature and transverse flow velocity, indicating that the thermal equilibrium is achieved in the hadronic system produced in 3.0 GeV Au+Au collisions.