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Multiplicity and centre-of-mass energy dependence of light-flavor hadron production in pp, p$-$Pb, and Pb$-$Pb collisions with ALICE

In heavy-ion collisions (A$-$A) at the CERN Large Hadron Collider (LHC) energies, a strongly coupled Quark Gluon Plasma (QGP) is produced, giving rise to collective phenomena whose signatures can be retrieved in final state hadronic observables. Recent observations suggest the presence of collective...

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Autor principal: Ravasenga, Ivan
Lenguaje:eng
Publicado: SISSA 2020
Materias:
Acceso en línea:https://dx.doi.org/10.22323/1.364.0290
http://cds.cern.ch/record/2765566
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author Ravasenga, Ivan
author_facet Ravasenga, Ivan
author_sort Ravasenga, Ivan
collection CERN
description In heavy-ion collisions (A$-$A) at the CERN Large Hadron Collider (LHC) energies, a strongly coupled Quark Gluon Plasma (QGP) is produced, giving rise to collective phenomena whose signatures can be retrieved in final state hadronic observables. Recent observations suggest the presence of collective phenomena in small systems like pp collisions. Ongoing analyses therefore try to identify whether a unified description of the pp, p$-$A and A$-$A data can be established.The integrated yield ratios to pion yields show an increasing trend at low charged-particle multiplicity that tends to saturate at higher multiplicities. The behaviour is dependent on the strangeness content of the particle species and is totally independent of the collision system and energy (multiplicity-driven particle production). Furthermore, a blast wave analysis shows how strong radial gradients are also present in p$-$Pb collisions at LHC energies. Hydrodynamic and recombination models are tested against the measured hadron spectral shapes at low and intermediate transverse momenta.
id oai-inspirehep.net-1830875
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2020
publisher SISSA
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spelling oai-inspirehep.net-18308752022-01-14T14:55:40Zdoi:10.22323/1.364.0290http://cds.cern.ch/record/2765566engRavasenga, IvanMultiplicity and centre-of-mass energy dependence of light-flavor hadron production in pp, p$-$Pb, and Pb$-$Pb collisions with ALICEParticle Physics - ExperimentNuclear Physics - ExperimentIn heavy-ion collisions (A$-$A) at the CERN Large Hadron Collider (LHC) energies, a strongly coupled Quark Gluon Plasma (QGP) is produced, giving rise to collective phenomena whose signatures can be retrieved in final state hadronic observables. Recent observations suggest the presence of collective phenomena in small systems like pp collisions. Ongoing analyses therefore try to identify whether a unified description of the pp, p$-$A and A$-$A data can be established.The integrated yield ratios to pion yields show an increasing trend at low charged-particle multiplicity that tends to saturate at higher multiplicities. The behaviour is dependent on the strangeness content of the particle species and is totally independent of the collision system and energy (multiplicity-driven particle production). Furthermore, a blast wave analysis shows how strong radial gradients are also present in p$-$Pb collisions at LHC energies. Hydrodynamic and recombination models are tested against the measured hadron spectral shapes at low and intermediate transverse momenta.SISSAoai:inspirehep.net:18308752020
spellingShingle Particle Physics - Experiment
Nuclear Physics - Experiment
Ravasenga, Ivan
Multiplicity and centre-of-mass energy dependence of light-flavor hadron production in pp, p$-$Pb, and Pb$-$Pb collisions with ALICE
title Multiplicity and centre-of-mass energy dependence of light-flavor hadron production in pp, p$-$Pb, and Pb$-$Pb collisions with ALICE
title_full Multiplicity and centre-of-mass energy dependence of light-flavor hadron production in pp, p$-$Pb, and Pb$-$Pb collisions with ALICE
title_fullStr Multiplicity and centre-of-mass energy dependence of light-flavor hadron production in pp, p$-$Pb, and Pb$-$Pb collisions with ALICE
title_full_unstemmed Multiplicity and centre-of-mass energy dependence of light-flavor hadron production in pp, p$-$Pb, and Pb$-$Pb collisions with ALICE
title_short Multiplicity and centre-of-mass energy dependence of light-flavor hadron production in pp, p$-$Pb, and Pb$-$Pb collisions with ALICE
title_sort multiplicity and centre-of-mass energy dependence of light-flavor hadron production in pp, p$-$pb, and pb$-$pb collisions with alice
topic Particle Physics - Experiment
Nuclear Physics - Experiment
url https://dx.doi.org/10.22323/1.364.0290
http://cds.cern.ch/record/2765566
work_keys_str_mv AT ravasengaivan multiplicityandcentreofmassenergydependenceoflightflavorhadronproductioninppppbandpbpbcollisionswithalice