Produzindo o plasma de quarks e glúons em colisões de O-O

Abstract

The Quark-Gluon Plasma (QGP) is a state of matter with several peculiar characteristics. It was present at the origin of the Universe, post-Big Bang, and today it is produced in large particle accelerators such as the LHC and RHIC. In this work, QGP is studied in simulations of oxygen nucleus collisions according to parameters established in articles by authors who have also conducted similar studies for collisions at the LHC. Colliding oxygen nuclei is a way to understand how systems behave when they are at the threshold between large systems like Pb-Pb and small systems like p-p. Oxygen, being a doubly magic element with an identical number of protons and neutrons, satisfies this condition. Experimentally, these collisions have been planned to occur since 2021. The simulation utilized the current state-of-the-art, with the initial condition generated in Trento, going through thermalization or also called pre-equilibrium, a hydrodynamic phase processed by MUSIC, particle generation, and finally, the analyses were done by UrQMD. The simulation comprised 3,300 events equally divided into 11 different centralities. Analyses were conducted concerning entropy, radius, number of participants, number of particles, transverse momentum, and anisotropic flow. With this, we attempt to understand the behavior of simulated oxygen collisions to compare with future experimental data.