# XIIIth Quark Confinement and the Hadron Spectrum

July 31, 2018 to August 6, 2018
Maynooth University
Europe/Dublin timezone

## Bayesian unfolding of charged particle $p_{\mathrm{T}}$ spectra with ALICE at the LHC

Aug 1, 2018, 2:20 PM
20m
Hall C (Arts Bldg.)

### Hall C

#### Arts Bldg.

Talk H. Statistical Methods for Physics Analysis in the XXI Century

### Speaker

Mario Kruger (Johann-Wolfgang-Goethe Univ. (DE))

### Description

The study of the Quark-Gluon Plasma created in ultrarelativistic heavy-ion collisions at the CERN-LHC is complemented by reference measurements in proton-lead (p--Pb) and proton-proton (pp) collisions, where the effects of multiple-parton interactions and hadronization beyond independent string fragmentation can be investigated.
In this talk, we present a Bayesian unfolding procedure to reconstruct the correlation between transverse momentum ($p_{\mathrm{T}}$) spectra of charged particles and the corresponding charged particle multiplicities $N_{\mathrm{ch}}$.
The unfolded spectra are presented in single multiplicity ($\Delta N_{\mathrm{ch}}$ = 1) bins and are used to derive moments of the $p_{\mathrm{T}}$ distributions.
We illustrate the unfolding procedure of the $p_{\mathrm{T}}$ spectra with MC simulations for pp collisions and compare the resulting $\langle p_{\mathrm{T}}\rangle$ of different systems (pp, p--Pb, Pb--Pb) and collision energies.

### Primary author

Mario Kruger (Johann-Wolfgang-Goethe Univ. (DE))