Speaker
Description
The azimuthal anisotropy of the final-state particles in nuclear-nuclear collisions arises from the geometry of the quark-gluon plasma fireball. In this talk, I will present flow coefficients $v_2$ and $v_3$ of charged particles measured in the Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV recorded by the ATLAS experiment in 2018. This measurement uses the scalar product and multi-particle cumulant methods to probe the momentum dependency of the flow coefficients. Thanks to the high integrated luminosity, the data allows us to explore the high-$p_\mathrm{T}$ regime.
Moreover, I will discuss a method to reconstruct charged particles with low $p_\mathrm{T}$ in high-multiplicity events, enabling future measurement of the flow coefficients to cover an even broader range of $p_\mathrm{T}$.
