# Quark Matter 2017

Feb 5 – 11, 2017
Hyatt Regency Chicago
America/Chicago timezone

## Di-hadron correlations in pp collisions at $\sqrt{s}=13$ TeV within $|\Delta\eta| \leq 8.4$

Not scheduled
2h 30m
Hyatt Regency Chicago

#### Hyatt Regency Chicago

151 East Wacker Drive Chicago, Illinois, USA, 60601
Board: M08
Poster

### Speaker

Christian Bourjau (University of Copenhagen (DK))

### Description

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 ALICE

### Primary author

Christian Bourjau (University of Copenhagen (DK))