Bochum 2018 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 47: Heavy Ion Collisions and QCD Phases VIII
HK 47.5: Talk
Thursday, March 1, 2018, 15:30–15:45, HZO 80
Bayesian unfolding of charged particle pT spectra with ALICE at the LHC — •Mario Krüger for the ALICE collaboration — Institut für Kernphysik, Goethe-Universität Frankfurt
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 (Δ Nch = 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 and collision energies.
Supported by BMBF and the Helmholtz Association.