Ph.D. Ante Bilandzic
Courses and Dates
|Title and Module Assignment|
Quark-Gluon Plasma: a study of an extreme state of matter at LHC
Assigned to modules:
Responsible/Coordination: Fabbietti, L.
singular or moved dates
Offered Bachelor’s or Master’s Theses Topics
- Exploring the properties of Quark-Gluon Plasma with anisotropic flow measurements at the Large Hadron Collider
- The matter produced in ultra-relativistic heavy-ion collisions resembles the Quark-Gluon Plasma (QGP), which is an extreme state of nuclear matter consisting of deconfined quarks and gluons. Such a state existed in the early Universe, just a few microseconds after the Big Bang. Its properties can be experimentally accessed by measuring the azimuthal anisotropies in the momentum distribution of produced particles in heavy-ion collisions, for instance, in lead-lead collisions reconstructed with the ALICE experiment at CERN's Large Hadron Collider (LHC). Of particular interest in this context is the anisotropic flow phenomenon, which is an observable directly sensitive to the properties of QGP. In this project, we introduce the basics of anisotropic flow and corresponding analyses techniques, and we guide a student throughout all steps needed for its final measurement, in the large-scale LHC datasets distributed on Grid. We start a project by briefly introducing a theoretical framework within which an anisotropic flow phenomenon can be defined and quantified. Next, we introduce sophisticated multi-particle correlation techniques, which were developed recently by experimentalists particularly for anisotropic flow measurements. We go in detail through the practical implementation of multi- particle correlations, students are expected at this point to perform some simple analytic calculations, and to learn and perform programming tasks both in ROOT and AliROOT. ROOT is the object-oriented analysis frame- work written in C++ programming language, and it is used at the moment as a default software in high-energy physics by all major collaborations world- wide, while AliROOT is the more speci c analysis framework developed by ALICE experiment, and which is based on ROOT. We wind up the project by letting the student do an independent ani- sotropic flow analysis with his/her own newly developed code in AliROOT, utilizing multi-particle correlation techniques, over real heavy-ion collisions collected by ALICE at LHC, and stored on Grid.
- suitable as
- Master’s Thesis Nuclear, Particle, and Astrophysics
- Supervisor: Laura Fabbietti