4–10 Apr 2022
Auditorium Maximum UJ
Europe/Warsaw timezone
Proceedings submission deadline extended to September 11, 2022

Charged-particle $p_{\mathrm{T}} $ spectra as a function of multiplicity in pp, p--A and A--A collisions measured with ALICE

6 Apr 2022, 17:38
4m
Poster Hadron production and collective dynamics Poster Session 1 T14_1

Speaker

Mario Kruger (Goethe University Frankfurt (DE))

Description

The ALICE experiment is dedicated to investigating a hot and dense deconfined state of matter created in heavy-ion collisions. Complementary measurements in smaller collision systems have shown signs of collectivity emerging even in simple hadronic collisions. Particle production at the LHC is driven by a complex interplay of soft and hard QCD processes. It is still challenging for modern Monte-Carlo event generators to describe particle production for all collision systems consistently. The correlation between hadron transverse momentum ($p_{\mathrm{T}} $) spectra and the event multiplicity serves as a sensitive observable to provide insight into different particle production mechanisms at play.
This poster reports on the measurement of charged-particle transverse momentum spectra as a function of charged-particle multiplicity density, obtained using a 2-dimensional unfolding procedure. The $p_{\mathrm{T}} $ spectra of charged hadrons are reported as a function of center-of-mass energy in different colliding systems. In addition, particle spectra measured in pp, p--Pb, and Pb--Pb collisions at $\sqrt{s_\mathrm{NN}} = 5.02\ \mathrm{TeV}$ are compared. This allows for a study of the center-of-mass energy dependence of particle production mechanisms in different colliding systems.

Primary author

Mario Kruger (Goethe University Frankfurt (DE))

Presentation materials