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Phenomenology of high energy collisions initial stages

Grant number: 21/04924-9
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): July 01, 2021
Effective date (End): August 31, 2022
Field of knowledge:Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields
Principal researcher:Jun Takahashi
Grantee:André Veiga Giannini
Home Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Associated research grant:17/05685-2 - Hadronic physics in high energy nuclear collisions, AP.TEM

Abstract

The modeling of collisions involving relativistic heavy-ions (RHI) has been evolving steadily, especially in the last two decades due to the start of operation of the accelerators Relativistic Heavy-Ion Collider (RHIC) and Large Hadron Collider (LHC). In the context of this thematic project, part of the researchers of the HadrEx group at Campinas State University have been developing an event simulation chain focused on describing the different steps of RHI collisions. In general terms, such steps are characterized as: i) initial conditions and the dynamics of the system produced shortly after a collision takes place ("pre-equilibrium" dynamics); ii) the transition to the hydrodynamic evolution of this system; iii) hadronization and final state dynamics. Simulations of this nature are complex and commonly known as "hybrid (hydrodynamic) simulations", since they make use of different inputs, specific for each step of the collision and with different degrees of sophistication. The goal of this proposal is to insert a new initial condition in the simulation chain, complementing other ongoing works focused in refining the pre-equilibrium dynamics in this same model. (AU)