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

Bayesian unfolding of charged particle pT spectra with ALICE at the LHC

1 Aug 2018, 14:20
20m
Hall C (Arts Bldg.)

Hall C

Arts Bldg.

Talk H. Statistical Methods for Physics Analysis in the XXI Century 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 (pT) spectra of charged particles and the corresponding charged particle multiplicities Nch.
The unfolded spectra are presented in single multiplicity (ΔNch = 1) bins and are used to derive moments of the pT distributions.
We illustrate the unfolding procedure of the pT spectra with MC simulations for pp collisions and compare the resulting pT of different systems (pp, p--Pb, Pb--Pb) and collision energies.

Author

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

Presentation materials