Non-linear flow modes of identified particles in Pb-Pb collisions at root S-NN=5.02 TeV

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dc.contributor University of Helsinki, University of Jyväskylä en
dc.contributor University of Helsinki, The Czech Academy of Sciences en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, University of Jyväskylä en
dc.contributor University of Helsinki, University of Jyväskylä en
dc.contributor University of Helsinki, University of Jyväskylä en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, University of Jyväskylä en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, University of Jyväskylä en
dc.contributor University of Helsinki, University of Bergen en
dc.contributor.author The ALICE collaboration
dc.contributor.author Acharya, S.
dc.contributor.author Kim, D. J.
dc.contributor.author Krizek, F.
dc.contributor.author Orava, R.
dc.contributor.author Parkkila, J. E.
dc.contributor.author Rak, J.
dc.contributor.author Rytkönen, Heidi Maria
dc.contributor.author Räsänen, Sami
dc.contributor.author Saarimäki, Oskari Antti Matti
dc.contributor.author Slupecki, M.
dc.contributor.author Snellman, T. W.
dc.contributor.author Trzaska, W. H.
dc.contributor.author Zhou, Z.
dc.date.accessioned 2020-11-16T15:54:01Z
dc.date.available 2020-11-16T15:54:01Z
dc.date.issued 2020-06-24
dc.identifier.citation The ALICE Collaboration , Acharya , S , Kim , D J , Krizek , F , Orava , R , Parkkila , J E , Rak , J , Rytkönen , H M , Räsänen , S , Saarimäki , O A M , Slupecki , M , Snellman , T W , Trzaska , W H & Zhou , Z 2020 , ' Non-linear flow modes of identified particles in Pb-Pb collisions at root S-NN=5.02 TeV ' , Journal of High Energy Physics , no. 6 , 147 . https://doi.org/10.1007/JHEP06(2020)147 en
dc.identifier.issn 1029-8479
dc.identifier.other PURE: 150285669
dc.identifier.other PURE UUID: a90731b6-34bf-4d39-b0ad-e263daff5bec
dc.identifier.other WOS: 000545685300001
dc.identifier.other ORCID: /0000-0003-2530-4265/work/87353104
dc.identifier.uri http://hdl.handle.net/10138/321558
dc.description.abstract The p(T)-differential non-linear flow modes, v(4,22), v(5,32), v(6, 33) and v(6,222) for pi(+/-), K-+/-, K-S(0), p + (p) over bar, Lambda + (Lambda) over bar and phi-meson have been measured for the first time at root SNN = 5.02 TeV in Pb-Pb collisions with the ALICE detector at the Large Hadron Collider. The results were obtained with a multi-particle technique, correlating the identified hadrons with reference charged particles from a different pseudorapidity region. These non-linear observables probe the contribution from the second and third order initial spatial anisotropy coefficients to higher flow harmonics. All the characteristic features observed in previous p(T) -differential anisotropic flow measurements for various particle species are also present in the non-linear flow modes, i.e. increase of magnitude with increasing centrality percentile, mass ordering at low p(T )and particle type grouping in the intermediate p(T) range. Hydrodynamical calculations (iEBE-VISHNU) that use different initial conditions and values of shear and bulk viscosity to entropy density ratios are confronted with the data at low transverse momenta. These calculations exhibit a better agreement with the anisotropic flow coefficients than the non-linear flow modes. These observations indicate that non-linear flow modes can provide additional discriminatory power in the study of initial conditions as well as new stringent constraints to hydrodynamical calculations. en
dc.format.extent 48
dc.language.iso eng
dc.relation.ispartof Journal of High Energy Physics
dc.rights en
dc.subject 114 Physical sciences en
dc.title Non-linear flow modes of identified particles in Pb-Pb collisions at root S-NN=5.02 TeV en
dc.type Article
dc.description.version Peer reviewed
dc.identifier.doi https://doi.org/10.1007/JHEP06(2020)147
dc.type.uri info:eu-repo/semantics/other
dc.type.uri info:eu-repo/semantics/publishedVersion
dc.contributor.pbl

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