# High $p_{\rm T}$ spectra and anisotropy of light and heavy hadrons

## TL;DR

This paper presents a simple interpretation of high transverse momentum spectra and anisotropy in heavy-ion collisions, focusing on energy loss mechanisms and the effects of asymmetric QGP expansion.

## Contribution

It introduces a QGP-brick model to interpret high pT results and explores the impact of QGP expansion asymmetry and quark-gluon energy loss differences.

## Key findings

- Highlights the potential influence of asymmetric QGP expansion on v2 at high pT
- Discusses the possibility of different energy loss between quarks and gluons
- Proposes extensions using Event-Shape Engineering to compare light and heavy quark energy loss

## Abstract

Data driven studies of heavy-ion results has played a big role in highlighting interesting features of these complex systems. In this proceeding, a simple QGP-brick interpretation of the $R_{\rm AA}$ and $v_{2}$ at high $p_{\rm T}$ ($p_{\rm T} \approx 10$ GeV/c) is presented. This interpretation draws attention to two fundamental questions: is there an effect of the asymmetric QGP expansion on the $v_{2}$ at high $p_{\rm T}$? is there an energy loss difference between quarks and gluons? Finally, it is discussed how these studies can be extended using Event-Shape Engineering and how they can be applied to compare the energy loss of light and heavy quarks.