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First measurement of symmetric cumulants of hexagonal flow harmonics in Pb-Pb collisions at √sNN = 5.02 TeV

Publication ,  Journal Article
Acharya, S; Agarwal, A; Rinella, GA; Aglietta, L; Agnello, M; Agrawal, N; Ahammed, Z; Ahmad, S; Ahn, SU; Ahuja, I; Akindinov, A; Akishina, V ...
Published in: Physical Review C
August 18, 2025
Published version (DOI)

Correlations between event-by-event fluctuations of anisotropic flow harmonics are measured in Pb-Pb collisions at a center-of-mass energy per nucleon pair of 5.02 TeV, as recorded by the ALICE detector at the LHC. This study presents correlations up to the hexagonal flow harmonic v6, which was measured for the first time. The magnitudes of these higher-order correlations are found to vary as a function of collision centrality and harmonic order. These measurements are compared to viscous hydrodynamic model calculations with EKRT initial conditions and to the iEBE-VISHNU model with TRENTo initial conditions. The observed discrepancies between the data and the model calculations vary depending on the harmonic combinations. Due to the sensitivity of model parameters estimated with Bayesian analyses to these higher-order observables, the results presented in this work provide new and independent constraints on the initial conditions and transport properties in theoretical models used to describe the system created in heavy-ion collisions.

Duke Scholars

Seog Oh
Author Seog Oh Physics

Published In

Physical Review C

DOI

10.1103/4ltm-g1qg

EISSN

2469-9993

ISSN

2469-9985

Publication Date

August 18, 2025

Volume

112

Issue

2

Related Subject Headings

  • 5106 Nuclear and plasma physics
 

Citation

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MLA
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Acharya, S., Agarwal, A., Rinella, G. A., Aglietta, L., Agnello, M., Agrawal, N., … Bhaduri, P. P. (2025). First measurement of symmetric cumulants of hexagonal flow harmonics in Pb-Pb collisions at √sNN = 5.02 TeV. Physical Review C, 112(2). https://doi.org/10.1103/4ltm-g1qg
Acharya, S., A. Agarwal, G. A. Rinella, L. Aglietta, M. Agnello, N. Agrawal, Z. Ahammed, et al. “First measurement of symmetric cumulants of hexagonal flow harmonics in Pb-Pb collisions at √sNN = 5.02 TeV.” Physical Review C 112, no. 2 (August 18, 2025). https://doi.org/10.1103/4ltm-g1qg.
Acharya S, Agarwal A, Rinella GA, Aglietta L, Agnello M, Agrawal N, et al. First measurement of symmetric cumulants of hexagonal flow harmonics in Pb-Pb collisions at √sNN = 5.02 TeV. Physical Review C. 2025 Aug 18;112(2).
Acharya, S., et al. “First measurement of symmetric cumulants of hexagonal flow harmonics in Pb-Pb collisions at √sNN = 5.02 TeV.” Physical Review C, vol. 112, no. 2, Aug. 2025. Scopus, doi:10.1103/4ltm-g1qg.
Acharya S, Agarwal A, Rinella GA, Aglietta L, Agnello M, Agrawal N, Ahammed Z, Ahmad S, Ahn SU, Ahuja I, Akindinov A, Akishina V, Al-Turany M, Aleksandrov D, Alessandro B, Alfanda HM, Molina RA, Ali B, Alici A, Alizadehvandchali N, Alkin A, Alme J, Alocco G, Alt T, Altamura AR, Altsybeev I, Alvarado JR, Anaam MN, Andrei C, Andreou N, Andronic A, Andronov E, Anguelov V, Antinori F, Antonioli P, Apadula N, Aphecetche L, Appelshäuser H, Arata C, Arcelli S, Arnaldi R, Arneiro JGMCA, Arsene IC, Arslandok M, Augustinus A, Averbeck R, Averyanov D, Azmi MD, Baba H, Badalà A, Bae J, Bae Y, Baek YW, Bai X, Bailhache R, Bailung Y, Bala R, Baldisseri A, Balis B, Banoo Z, Barbasova V, Barile F, Barioglio L, Barlou M, Barman B, Barnaföldi GG, Barnby LS, Barreau E, Barret V, Barreto L, Bartels C, Barth K, Bartsch E, Bastid N, Basu S, Batigne G, Battistini D, Batyunya B, Bauri D, BazoAlba JL, Bearden IG, Becht P, Behera D, Belikov I, Hechavarria ADCB, Bellini F, Bellwied R, Belokurova S, Beltran LGE, Beltran YAV, Bencedi G, Bensaoula A, Beole S, Berdnikov Y, Berdnikova A, Bergmann L, Bernardinis L, Besoiu MG, Betev L, Bhaduri PP. First measurement of symmetric cumulants of hexagonal flow harmonics in Pb-Pb collisions at √sNN = 5.02 TeV. Physical Review C. 2025 Aug 18;112(2).

Published In

Physical Review C

DOI

10.1103/4ltm-g1qg

EISSN

2469-9993

ISSN

2469-9985

Publication Date

August 18, 2025

Volume

112

Issue

2

Related Subject Headings

  • 5106 Nuclear and plasma physics