"Azimuthal anisotropies of charged particles with high transverse momentum in Pb+Pb collisions at 5.02 TeV "

This note describes the measurement of azimuthal anisotropies of charged particles in Pb+Pb collisions at $5.02$ TeV. The measurements are performed using a luminosity of 1.72 nb$^{-1}$ collected with the ATLAS detector at the LHC in 2018. The azimuthal anisotropy coefficients, $v_n$, are measured using the scalar product method for $n = 2,3,4$. The $Q_n$ vectors are determined at forward rapidities. The $v_n$ values are measured differentially in charged-particle transverse momentum ($p_T$) from 1 to 200~GeV and collision centrality for the 40\% most central collisions. At high $p_T$, charged particles dominantly come from the fragmentation of jets. This measurement is sensitive to the path-length dependence of energy loss of the jets as they traverse the quark-gluon plasma produced in Pb+Pb collisions at the LHC.