Speaker
Description
The interaction of heavy quarks with the quark-gluon plasma (QGP) affects their azimuthal distribution and transverse momentum ($p_{\mathrm{T}}$) spectrum. Hence, azimuthal anisotropy coefficients ($v_n$) and nuclear modification factors ($R_{AA}$) of heavy flavor hadrons are vital probes to study QGP properties. This talk presents the first measurements of the elliptic ($v_{2}$) and triangular ($v_{3}$) flow coefficients of $D_{s}^{\pm}$ mesons in lead-lead (PbPb) collisions at a center-of-mass energy of 5.02 TeV with the CMS experiment. These measurements are performed as a function of transverse momentum in different centrality classes, significantly increasing precision and expanding the kinematic range compared to existing results. The wide kinematic range and direct comparison with non-strange D mesons allow for the investigation of various charm quark flow generation mechanisms, particularly hadronization processes. Additionally, the first-ever $D_{s}^{\pm}$ meson $v_3$ measurement can probe the impact of initial states.
| Category | Experiment |
|---|---|
| Collaboration | CMS |
