Abstract
The study of energy and multiplicity dependence of hadron production in proton-proton collisions provides a powerful tool to understand similarities and differences between small and large colliding systems. In this work we present mid-rapidity measurements of the pT spectra and yields of identified hadrons, namely pions, kaons, protons, K0S, Ξ, Ω and in pp collisions at √s = 7 and 13 TeV. The comparison of results at √s = 13 TeV to earlier results at 7 TeV provides insights about the energy dependence of the strangeness enhancement. Comparisons between data and expectations from commonly-used Monte Carlo event generators will be presented.
Highlights
The primary goal of the ALICE experiment is the study of the strongly-interacting Quark-Gluon Plasma (QGP), which is expected to be produced in ultra-relativistic heavy-ion collisions
These commonalities raise questions about the possibility to employ a description based on the assumption of thermal and chemical equilibrium, commonly used in the heavy-ion context, in small systems
The study of identified hadron production, both integrated yields and differential pT-spectra, as a function of the charged particle multiplicity represents a powerful tool to shed light on these open points. In these proceedings a selection of multiplicity dependent results obtained by ALICE at mid-rapidity will be discussed
Summary
The primary goal of the ALICE experiment is the study of the strongly-interacting Quark-Gluon Plasma (QGP), which is expected to be produced in ultra-relativistic heavy-ion collisions. In recent measurements from the highest LHC energies, it was observed that small systems showed striking commonalities with heavy-ion collisions when multiplicity dependent studies are performed. The study of identified hadron production, both integrated yields and differential pT-spectra, as a function of the charged particle multiplicity represents a powerful tool to shed light on these open points.
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