The Large Hadron Collider (LHC) is the world's most important project in high energy physics. With its dedicated experiment on heavy ion (HI) physics, the LHC will focus on the unique possibility of creating and studying a new sta...
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Descripción del proyecto
The Large Hadron Collider (LHC) is the world's most important project in high energy physics. With its dedicated experiment on heavy ion (HI) physics, the LHC will focus on the unique possibility of creating and studying a new state of matter, quark gluon plasma (QGP), at energy densities similar to those of the early Universe. The quest for QGP is also the driving force behind the currently operating (though at much smaller energies) Relativistic Heavy Ion Collider (RHIC). The study of the fundamental theory of strong interactions, Quantum Chromo-Dynamics (QCD), under extreme conditions is one of the most challenging topics in physics. In particular, a theoretical description of HI collisions and the formation of QGP from first principle calculations is still missing. This proposal is aimed at achieving a qualitatively new level of understanding of HI collisions, both theoretically and phenomenologically, through the development of a new QCD-based description of these processes. I plan to start by addressing a variety of phenomenological issues related to the presently available RHIC data, with the final goal of projecting our understanding of HI collisions to the much higher energies available at the LHC. More specifically, I propose to use perturbative resummation techniques to derive an effective field theory valid at high energies and high gluonic densities. I plan to study the total cross section, multiplicities, momenta distributions and various correlations of particles produced in the collision. I then intend to use these results as initial conditions for subsequent time evolution through the plasma phase. The plasma evolution will be modeled by means of a new hydrodynamic description, which I will develop using string/gravity-inspired methods. By applying the knowledge and experience accumulated in the RHIC era, I will significantly contribute to the success of Europe's LHC heavy ion program.