Collectivity in small and large collision systems at the LHC with ALICE

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F19%3A00338039" target="_blank" >RIV/68407700:21340/19:00338039 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1088/1742-6596/1271/1/012002" target="_blank" >https://doi.org/10.1088/1742-6596/1271/1/012002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1742-6596/1271/1/012002" target="_blank" >10.1088/1742-6596/1271/1/012002</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Collectivity in small and large collision systems at the LHC with ALICE

Popis výsledku v původním jazyce

Interactions of protons (pp) or of a proton with a lead nucleus (p-Pb) were not expected to form a deconfined hot and dense matter, called the Quark-Gluon Plasma (QGP), which is instead produced in heavy-ion collisions. However, high-multiplicity events in small collision systems exhibit signs of collectivity, which are understood as a signature of the QGP emergence in heavy-ion collisions. An excellent tool to probe the presence of collectivity is the anisotropic flow measured with two- and multi-particle cumulants. In these proceedings, we present the first measurement of flow coefficients and their magnitude correlations using symmetric cumulants for charged particles in pp collisions at centre-of-mass energies of root s = 13 TeV, p-Pb at root s(NN) = 5.02 TeV, Xe-Xe at root s(NN) = 5.44 TeV and Pb-Pb collisions at root s(NN) = 5.02 TeV, collected during the LHC Run 2 programme. In addition, the flow coefficients of identified particles in p-Pb collisions are shown. Such a broad spectrum of colliding systems with different energies and a wide range of multiplicity allows for a detailed investigation of their collision dynamics. Non-flow effects, which are azimuthal correlations not originating from a common symmetry plane, are suppressed with the pseudorapidity separation and the subtraction method. These results provide an important insight into the nature of collective phenomena in different collision systems.

Název v anglickém jazyce

Collectivity in small and large collision systems at the LHC with ALICE

Popis výsledku anglicky

Interactions of protons (pp) or of a proton with a lead nucleus (p-Pb) were not expected to form a deconfined hot and dense matter, called the Quark-Gluon Plasma (QGP), which is instead produced in heavy-ion collisions. However, high-multiplicity events in small collision systems exhibit signs of collectivity, which are understood as a signature of the QGP emergence in heavy-ion collisions. An excellent tool to probe the presence of collectivity is the anisotropic flow measured with two- and multi-particle cumulants. In these proceedings, we present the first measurement of flow coefficients and their magnitude correlations using symmetric cumulants for charged particles in pp collisions at centre-of-mass energies of root s = 13 TeV, p-Pb at root s(NN) = 5.02 TeV, Xe-Xe at root s(NN) = 5.44 TeV and Pb-Pb collisions at root s(NN) = 5.02 TeV, collected during the LHC Run 2 programme. In addition, the flow coefficients of identified particles in p-Pb collisions are shown. Such a broad spectrum of colliding systems with different energies and a wide range of multiplicity allows for a detailed investigation of their collision dynamics. Non-flow effects, which are azimuthal correlations not originating from a common symmetry plane, are suppressed with the pseudorapidity separation and the subtraction method. These results provide an important insight into the nature of collective phenomena in different collision systems.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Projekt

<a href="/cs/project/EF16_019%2F0000778" target="_blank" >EF16_019/0000778: Centrum pokročilých aplikovaných přírodních věd</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Journal of Physics Conference Series

ISBN

—

ISSN

1742-6588

e-ISSN

1742-6588

Počet stran výsledku

7

Strana od-do

—

Název nakladatele

IOP Publishing Ltd

Místo vydání

Bristol

Místo konání akce

Casa do Sol HotelKruger, Hazyview

Datum konání akce

3. 12. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000487003600002