Qualitative and Quantitative Jet Physics in Pb + Pb at LHC

TL;DR

This paper discusses jet physics in lead-lead collisions at the LHC, highlighting the need for quantitative models and control data to better understand quark-gluon plasma properties.

Contribution

It emphasizes the importance of developing constrained theoretical calculations and acquiring control data to interpret jet quenching phenomena.

Findings

Qualitative agreement with perturbative energy loss models

Highlighting the need for quantitative theory constrained by RHIC data

Stressing the importance of control p+p and p+Pb measurements

Abstract

The momentum dependence of the exciting new Pb + Pb data from LHC qualitatively suggests a perturbative picture interpretation for the energy loss of high-pT particles, but conclusions are difficult to draw due to the lack of 1) a quantitative theoretical calculation constrained by current high precision RHIC data and 2) a lack of control p + p and p + Pb data at LHC. Future measurements of identified heavy quark suppression will provide a novel qualitative tool for determining the dominant physics of the quark-gluon plasma created at RHIC and LHC.