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Higher-order moments of the elliptic flow distribution in PbPb collisions at sNN = 5.02 TeV

Journal articles  - Journal Article
Tumasyan, A; Adam, W; Andrejkovic, JW; Bergauer, T; Chatterjee, S; Damanakis, K; Dragicevic, M; Escalante Del Valle, A; Hussain, PS; Jeitler, M ...
Published in: Journal of High Energy Physics
February 1, 2024
Published version (DOI)

The hydrodynamic flow-like behavior of charged hadrons in high-energy lead-lead collisions is studied through multiparticle correlations. The elliptic anisotropy values based on different orders of multiparticle cumulants, v2{2k}, are measured up to the tenth order (k = 5) as functions of the collision centrality at a nucleon-nucleon center-of-mass energy of sNN = 5.02 TeV. The data were recorded by the CMS experiment at the LHC and correspond to an integrated luminosity of 0.607 nb−1. A hierarchy is observed between the coefficients, with v2{2} > v2{4} ≳ v2{6} ≳ v2{8} ≳ v2{10}. Based on these results, centrality-dependent moments for the fluctuation-driven event-by-event v2 distribution are determined, including the skewness, kurtosis and, for the first time, superskewness. Assuming a hydrodynamic expansion of the produced medium, these moments directly probe the initial-state geometry in high-energy nucleus-nucleus collisions.

Duke Scholars

Seog Oh
Author Seog Oh Physics
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Published In

Journal of High Energy Physics

DOI

10.1007/JHEP02(2024)106

EISSN

1029-8479

Publication Date

February 1, 2024

Volume

2024

Issue

2

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 4902 Mathematical physics
 

Citation

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Tumasyan, A., Adam, W., Andrejkovic, J. W., Bergauer, T., Chatterjee, S., Damanakis, K., … Fonseca De Souza, S. (2024). Higher-order moments of the elliptic flow distribution in PbPb collisions at sNN = 5.02 TeV. Journal of High Energy Physics, 2024(2). https://doi.org/10.1007/JHEP02(2024)106
Tumasyan, A., W. Adam, J. W. Andrejkovic, T. Bergauer, S. Chatterjee, K. Damanakis, M. Dragicevic, et al. “Higher-order moments of the elliptic flow distribution in PbPb collisions at sNN = 5.02 TeV.” Journal of High Energy Physics 2024, no. 2 (February 1, 2024). https://doi.org/10.1007/JHEP02(2024)106.
Tumasyan A, Adam W, Andrejkovic JW, Bergauer T, Chatterjee S, Damanakis K, et al. Higher-order moments of the elliptic flow distribution in PbPb collisions at sNN = 5.02 TeV. Journal of High Energy Physics. 2024 Feb 1;2024(2).
Tumasyan, A., et al. “Higher-order moments of the elliptic flow distribution in PbPb collisions at sNN = 5.02 TeV.” Journal of High Energy Physics, vol. 2024, no. 2, Feb. 2024. Scopus, doi:10.1007/JHEP02(2024)106.
Tumasyan A, Adam W, Andrejkovic JW, Bergauer T, Chatterjee S, Damanakis K, Dragicevic M, Escalante Del Valle A, Hussain PS, Jeitler M, Krammer N, Lechner L, Liko D, Mikulec I, Paulitsch P, Pitters FM, Schieck J, Schöfbeck R, Schwarz D, Sonawane M, Templ S, Waltenberger W, Wulz CE, Darwish MR, Janssen T, Kello T, Rejeb Sfar H, Van Mechelen P, Bols ES, D’Hondt J, De Moor A, Delcourt M, El Faham H, Lowette S, Moortgat S, Morton A, Müller D, Sahasransu AR, Tavernier S, Van Doninck W, Vannerom D, Clerbaux B, De Lentdecker G, Favart L, Hohov D, Jaramillo J, Lee K, Mahdavikhorrami M, Makarenko I, Malara A, Paredes S, Pétré L, Postiau N, Thomas L, Vanden Bemden M, Vander Velde C, Vanlaer P, Dobur D, Knolle J, Lambrecht L, Mestdach G, Rendón C, Samalan A, Skovpen K, Tytgat M, Van Den Bossche N, Vermassen B, Wezenbeek L, Benecke A, Bruno G, Bury F, Caputo C, David P, Delaere C, Donertas IS, Giammanco A, Jaffel K, Jain S, Lemaitre V, Mondal K, Taliercio A, Tran TT, Vischia P, Wertz S, Alves GA, Coelho E, Hensel C, Moraes A, Rebello Teles P, Aldá Júnior WL, Alves Gallo Pereira M, Barroso Ferreira Filho M, Brandao Malbouisson H, Carvalho W, Chinellato J, Da Costa EM, Da Silveira GG, De Jesus Damiao D, Dos Santos Sousa V, Fonseca De Souza S. Higher-order moments of the elliptic flow distribution in PbPb collisions at sNN = 5.02 TeV. Journal of High Energy Physics. 2024 Feb 1;2024(2).
Journal cover image

Published In

Journal of High Energy Physics

DOI

10.1007/JHEP02(2024)106

EISSN

1029-8479

Publication Date

February 1, 2024

Volume

2024

Issue

2

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 4902 Mathematical physics