Non-linear flow modes of identified particles in Pb-Pb collisions at √sNN = 5.02 TeV
Authors:
- S. Acharya,
- Daniel Dąbrowski,
- Kamil Deja,
- Łukasz Graczykowski,
- Monika Jakubowska,
- Małgorzata Janik,
- Przemysław Karczmarczyk,
- Adam Kisiel,
- Julian Myrcha,
- Łukasz Neumann,
- Piotr Nowakowski,
- Janusz Oleniacz,
- Jan Pluta,
- Przemysław Rokita,
- Krystian Rosłon,
- Tomasz Trzciński,
- Hanna Zbroszczyk
Abstract
The pT-differential non-linear flow modes, v4,22, v5,32, v6,33 and v6,222 for π±, K±, KS0 , p + p ¯ , Λ + Λ ¯ and ϕ-meson have been measured for the first time at 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 pT-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 pT and particle type grouping in the intermediate pT 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. [Figure not available: see fulltext.].
- Record ID
- WUT9c9a0e893ee149e38e6a05d9dbd470ff
- Author
- Total number of authors
- 1009
- Collective author
- ALICE Collaboration
- Journal series
- Journal of High Energy Physics, ISSN 1029-8479, [1126-6708]
- Issue year
- 2020
- Vol
- 2020
- No
- 6
- Pages
- 1-48
- Publication size in sheets
- 2.35
- Article number
- 147
- Keywords in English
- Heavy Ion Experiments
- ASJC Classification
- DOI
- DOI:10.1007/JHEP06(2020)147 Opening in a new tab
- URL
- https://link.springer.com/article/10.1007%2FJHEP06%282020%29147 Opening in a new tab
- Language
- (en) English
- License
- File
-
- File: 1
- Non-linear flow modes of identified particles in Pb-Pb collisions at √sNN = 5.02 TeV, File Acharya2020_Article_Non-linearFlowModesOfIdentifie.pdf / 1 MB
- Acharya2020_Article_Non-linearFlowModesOfIdentifie.pdf
- publication date: 24-09-2020
- Non-linear flow modes of identified particles in Pb-Pb collisions at √sNN = 5.02 TeV, File Acharya2020_Article_Non-linearFlowModesOfIdentifie.pdf / 1 MB
-
- Score (nominal)
- 140
- Score source
- journalList
- Score
- = 140.0, 03-05-2022, ArticleFromJournal
- Publication indicators
- = 3; = 3; = 17; : 2018 = 1.132; : 2020 (2 years) = 5.810 - 2020 (5 years) =4.977
- Citation count
- 18
- Uniform Resource Identifier
- https://repo.pw.edu.pl/info/article/WUT9c9a0e893ee149e38e6a05d9dbd470ff/
- URN
urn:pw-repo:WUT9c9a0e893ee149e38e6a05d9dbd470ff
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or PerishOpening in a new tab system.