5-11 February 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

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.

Collaboration ALICE
Preferred Track Correlations and Fluctuations

Primary author

Christian Bourjau (University of Copenhagen (DK))

Presentation materials