Di-hadron correlations in relative azimuthal angle and over large pseudorapidity separations ($\Delta\eta$) recently revealed evidence for collectivity in the small collision systems of pp and p--Pb.
In this analysis we investigate the correlations between tracks in the Inner Tracking System and energy deposition in the Forward Multiplicity Detector (FMD) ($1.7<\eta<5$, $-3.4<\eta<-1.7$).
This makes it possible to measure di-hadron correlations over the range of $|\Delta\eta| \leq 8.4$ significantly improving on previously published results.
However, the FMD, which only measures clusters and not tracks, is significantly affected by secondary particles produced by other particles interacting with detector material.
A new correction procedure is developed to extract anisotropic flow coefficients in the presence of large numbers of such secondary particles.
|Preferred Track||Correlations and Fluctuations|