Charged-particle angular correlations in XeXe collisions at $\sqrt{s_{_\mathrm{NN}}} =$ 5.44 TeV

Understand

Azimuthal correlations of charged particles in xenon-xenon collisions at a center-of-mass energy per nucleon pair of $ \sqrt{s_{_\mathrm{NN}}} =$ 5.44 TeV are studied.

• The data were collected by the CMS experiment at the LHC with a total integrated luminosity of 3.42 $\mu$b$^{-1}$.
• The collective motion of the system formed in the collision is parameterized by a Fourier expansion of the azimuthal particle density distribution.
• The azimuthal anisotropy coefficients $v_{2}$, $v_{3}$, and $v_{4}$ are obtained by the scalar-product, two-particle correlation, and multiparticle correlation methods.