Recent progress on the understanding of the medium-induced jet evolution and energy loss in pQCD

Abstract

Motivated by the striking modifications of jets observed both at RHIC and the LHC, significant progress towards the understanding of jet dynamics within QGP has occurred over the last few years. In this talk, I review the recent theoretical developments in the study of medium-induced jet evolution and energy loss within a perturbative framework. The main mechanisms of energy loss and broadening will be firstly addressed with focus on leading particle calculations beyond the eikonal approximation. Then, I will provide an overview of the modifications of the interference pattern between the different parton emitters that build up the parton shower when propagating through an extended coloured medium. I will show that the interplay between color coherence/decoherence that arises from such effects is the main mechanism for the modification of the jet core angular structure. Finally, I discuss the possibility of a probabilistic picture of the parton shower evolution in the limit of a very dense or infinite medium.

XIIth Quark Confinement and the Hadron Spectrum Proceedings

References in corpus (10)

• PYTHIA 6.4 Physics and Manual
• Sudakov Safety in Perturbative QCD
• Q-PYTHIA: a medium-modified implementation of final state radiation
• Measurement of inclusive jet charged-particle fragmentation functions in Pb+Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV with the ATLAS detector
• Centrality dependence of the nuclear modification factor of charged pions, kaons, and protons in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Angular structure of the in-medium QCD cascade
• Medium-induced gluon radiation and colour decoherence beyond the soft approximation
• The non-linear evolution of jet quenching
• Angular distribution of medium-induced QCD cascades
• Sub-jet structure as a discriminating quenching probe