A remark on the sign change of the four-particle azimuthal cumulant in small systems

Abstract

The azimuthal cumulants, $c_2\{2\}$ and $c_2\{4\}$, originating from the global conservation of transverse momentum in the presence of hydro-like elliptic flow are calculated. We observe the sign change of $c_2\{4\}$ for small number of produced particles. This is in a qualitative agreement with the recent ATLAS measurement of multi-particle azimuthal correlations with the subevent cumulant method.

8 pages, 2 figures; PLB version, less equations, experimental points added

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Cited by in corpus (6)

• Multiparticle azimuthal cumulants in p+Pb collisions from a multiphase transport model
• Parton collisional effect on the conversion of geometry eccentricities into momentum anisotropies in relativistic heavy-ion collisions
• Multiparticle azimuthal cumulants from transverse momentum conservation and collective flow
• Effect of global momentum conservation on longitudinal flow decorrelation
• Symmetric cumulant $s{c}_{2,4}\left\{4\right\}$ and asymmetric cumulant $a{c}_2\left\{3\right\}$ from transverse momentum conservation and flow
• Effect of transverse momentum conservation and flow on symmetric cumulants $s{c}_{2,3}\left\{4\right\}$ and $s{c}_{2,3,4}\left\{6\right\}$