Multiparticle azimuthal angular correlations in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mi>A</mml:mi></mml:math> collisions

Abstract

In the Color Glass Condensate formalism, we evaluate the 3-dipole correlator up to the $\frac{1}{{N}_{c}^{4}}$ order with ${N}_{c}$ being the number of colors, and compute the azimuthal cumulant ${c}_{123}$ for 3-particle productions. In addition, we discuss the patterns appearing in the $n$-dipole formula in terms of $\frac{1}{{N}_{c}}$ expansions. This allows us to conjecture the ${N}_{c}$ scaling of ${c}_{n}{m}$, which is crosschecked by our calculation of ${c}_{2}{4}$ in the dilute limit.