Аннотация
Two particles angular correlations are a useful tool to study the mechanisms of particle production by observing the angular separation ( $${\Delta}\eta$$ , $${\Delta}\phi$$ ) between pairs of particles in an event. Different structures in the $${\Delta}\eta{-}{\Delta}\phi$$ space are caused by various modes of particle production and interactions between particles shortly after production. Examining these structures can give us insight into the nature of these interactions.