May 13 – 19, 2018
Venice, Italy
Europe/Zurich timezone
The organisers warmly thank all participants for such a lively QM2018! See you in China in 2019!

Measurement of (anti-)$^{3}\mathrm{He}$ production in p--Pb collisions and of (anti-)$^{3}\mathrm{He}$ elliptic flow in Pb--Pb collisions with ALICE at the LHC

May 15, 2018, 5:00 PM
2h 40m
First floor and third floor (Palazzo del Casinò)

First floor and third floor

Palazzo del Casinò

Poster Collective dynamics Poster Session


Dr Alberto Calivà (GSI)


The formation of light nuclei and their antiparticles in high-energy hadronic and heavy-ion collisions can be described by two phenomenological models: the statistical hadronization model and the coalescence approach. The former assumes that light nuclei, as well as other hadrons, are produced thermally at the phase boundary in heavy-ion collisions, while the latter describes the light nuclei formation as the result of coalescence of nucleons which are close in the phase space.
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In this poster, results on the production yields of (anti-)$^{3}\mathrm{He}$ in p--Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV and elliptic flow measured in Pb--Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 and $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV for different centrality classes are presented.
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The attempt is to provide additional constraints to the coalescence model, thus contributing to an improved understanding of the process of formation of light nuclei in high-energy collisions. Integral part of this effort is the comparison of results in different collision systems such as p--Pb and Pb--Pb.
The measurement of the elliptic flow of (anti-)$^{3}\mathrm{He}$ in Pb--Pb collisions complements the picture obtained from the elliptic flow measurements of (anti-)protons and (anti-)deuterons.

Collaboration ALICE
Centralised submission by Collaboration Presenter name already specified
Content type Experiment

Primary authors

Dr Alberto Calivà (GSI) Mr Sebastian Hornung (Heidelberg University)

Presentation materials