Theoretical Review on QCD and Vector Mesons in Dileptonic Quark Gluon Plasma

TL;DR

This paper reviews the theoretical understanding of QCD and the behavior of light vector mesons in the dileptonic signals from Quark Gluon Plasma, highlighting progress and open questions in the field.

Contribution

It provides a concise guide to the theory of strong interactions focusing on light vector mesons and their role in probing QGP through dileptonic production.

Findings

Progress in understanding dileptonic signals from QGP

Open questions in non-perturbative mass region

Emphasis on light vector mesons as probes

Abstract

After the discovery of the Quantum Chromodynamics (QCD), many experimental and theoretical efforts have been made to investigate physics issues involved in ultra relativistic heavy-ion collisions. The fundamental goal of this work is to present a short guide of the underlying theory of strong interactions with emphasis on the light vector mesons based on the exceptional work of R.Rapp and J.Wambach. Today widely believed that deconfinement and chiral symmetry restoration probably takes place in a hot and dense hadronic medium as this produced at these collisions. We focus at the place where the examination of the new form of matter, so-called Quark Gluon Plasma (QGP), can be done through the investigation of the dileptonic production coming from light vector mesons. Significant progress has been made since the last years, but still some open questions remain at the non-perturbative mass region.