Correlated Event-by-Event Fluctuations of Flow Harmonics in Pb-Pb Collisions at √sNN = 2.76 TeV

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dc.contributor.authorAdam, J
dc.contributor.authorAdamová, D
dc.contributor.authorAggarwal, M M
dc.contributor.authorAglieri Rinella, G
dc.contributor.authorAgnello, M
dc.contributor.authorAgrawal, N
dc.contributor.authorAhammed, Z
dc.contributor.authorAhmad, S
dc.contributor.authorAhn, S U
dc.contributor.authorAiola, S
dc.contributor.authorAkindinov, A
dc.contributor.authorAlam, S N
dc.contributor.authorAlbuquerque, D S D
dc.contributor.authorAleksandrov, D
dc.contributor.authorAlessandro, B
dc.contributor.authorAlexandre, D
dc.contributor.authorAlfaro Molina, R
dc.contributor.authorAlici, A
dc.contributor.authorAlkin, A
dc.contributor.authorAlmaraz, J R M
dc.contributor.authorAlme, J
dc.contributor.authorAlt, T
dc.contributor.authorAltinpinar, S
dc.contributor.authorAltsybeev, I
dc.contributor.authorAlves Garcia Prado, C
dc.contributor.authorAndrei, C
dc.contributor.authorAndronic, A
dc.contributor.authorAnguelov, V
dc.contributor.authorAntičić, T
dc.contributor.authorAntinori, F
dc.contributor.authorAntonioli, P
dc.contributor.authorAphecetche, L
dc.date.accessioned2021-10-08T07:11:37Z
dc.date.available2021-10-08T07:11:37Z
dc.date.issued2016
dc.description.abstractWe report the measurements of correlations between event-by-event fluctuations of amplitudes of anisotropic flow harmonics in nucleus-nucleus collisions, obtained for the first time using a new analysis method based on multiparticle cumulants in mixed harmonics. This novel method is robust against systematic biases originating from nonflow effects and by construction any dependence on symmetry planes is eliminated. We demonstrate that correlations of flow harmonics exhibit a better sensitivity to medium properties than the individual flow harmonics. The new measurements are performed in Pb-Pb collisions at the center-of-mass energy per nucleon pair of root S-NN = 2.76 TeV by the ALICE experiment at the Large Hadron Collider. The centrality dependence of correlation between event-by-event fluctuations of the elliptic upsilon 2 and quadrangular upsilon 4 flow harmonics, as well as of anticorrelation between upsilon 2 and triangular upsilon 3 flow harmonics are presented. The results cover two different regimes of the initial state configurations: geometry dominated (in midcentral collisions) and fluctuation dominated (in the most central collisions). Comparisons are made to predictions from Monte Carlo Glauber, viscous hydrodynamics, AMPT, and HIJING models. Together with the existing measurements of the individual flow harmonics the presented results provide further constraints on the initial conditions and the transport properties of the system produced in heavy-ion collisions.
dc.identifier.apacitationAdam, J., Adamová, D., , Aglieri Rinella, G., Agnello, M., Agrawal, N., ... Aphecetche, L. (2016). Correlated Event-by-Event Fluctuations of Flow Harmonics in Pb-Pb Collisions at √sNN = 2.76 TeV. <i>Physical Review Letters</i>, 117(18), 174 - 177. http://hdl.handle.net/11427/34654en_ZA
dc.identifier.chicagocitationAdam, J, D Adamová, , G Aglieri Rinella, M Agnello, N Agrawal, Z Ahammed, et al "Correlated Event-by-Event Fluctuations of Flow Harmonics in Pb-Pb Collisions at √sNN = 2.76 TeV." <i>Physical Review Letters</i> 117, 18. (2016): 174 - 177. http://hdl.handle.net/11427/34654en_ZA
dc.identifier.citationAdam, J., Adamová, D., , Aglieri Rinella, G., Agnello, M., Agrawal, N., Ahammed, Z. & Ahmad, S. et al. 2016. Correlated Event-by-Event Fluctuations of Flow Harmonics in Pb-Pb Collisions at √sNN = 2.76 TeV. <i>Physical Review Letters.</i> 117(18):174 - 177. http://hdl.handle.net/11427/34654en_ZA
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.issn1092-0145
dc.identifier.ris TY - Journal Article AU - Adam, J AU - Adamová, D AU - Aggarwal, M M AU - Aglieri Rinella, G AU - Agnello, M AU - Agrawal, N AU - Ahammed, Z AU - Ahmad, S AU - Ahn, S U AU - Aiola, S AU - Akindinov, A AU - Alam, S N AU - Albuquerque, D S D AU - Aleksandrov, D AU - Alessandro, B AU - Alexandre, D AU - Alfaro Molina, R AU - Alici, A AU - Alkin, A AU - Almaraz, J R M AU - Alme, J AU - Alt, T AU - Altinpinar, S AU - Altsybeev, I AU - Alves Garcia Prado, C AU - Andrei, C AU - Andronic, A AU - Anguelov, V AU - Antičić, T AU - Antinori, F AU - Antonioli, P AU - Aphecetche, L AB - We report the measurements of correlations between event-by-event fluctuations of amplitudes of anisotropic flow harmonics in nucleus-nucleus collisions, obtained for the first time using a new analysis method based on multiparticle cumulants in mixed harmonics. This novel method is robust against systematic biases originating from nonflow effects and by construction any dependence on symmetry planes is eliminated. We demonstrate that correlations of flow harmonics exhibit a better sensitivity to medium properties than the individual flow harmonics. The new measurements are performed in Pb-Pb collisions at the center-of-mass energy per nucleon pair of root S-NN = 2.76 TeV by the ALICE experiment at the Large Hadron Collider. The centrality dependence of correlation between event-by-event fluctuations of the elliptic upsilon 2 and quadrangular upsilon 4 flow harmonics, as well as of anticorrelation between upsilon 2 and triangular upsilon 3 flow harmonics are presented. The results cover two different regimes of the initial state configurations: geometry dominated (in midcentral collisions) and fluctuation dominated (in the most central collisions). Comparisons are made to predictions from Monte Carlo Glauber, viscous hydrodynamics, AMPT, and HIJING models. Together with the existing measurements of the individual flow harmonics the presented results provide further constraints on the initial conditions and the transport properties of the system produced in heavy-ion collisions. DA - 2016 DB - OpenUCT DP - University of Cape Town IS - 18 J1 - Physical Review Letters LK - https://open.uct.ac.za PY - 2016 SM - 0031-9007 SM - 1079-7114 SM - 1092-0145 T1 - Correlated Event-by-Event Fluctuations of Flow Harmonics in Pb-Pb Collisions at √sNN = 2.76 TeV TI - Correlated Event-by-Event Fluctuations of Flow Harmonics in Pb-Pb Collisions at √sNN = 2.76 TeV UR - http://hdl.handle.net/11427/34654 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/34654
dc.identifier.vancouvercitationAdam J, Adamová D, , Aglieri Rinella G, Agnello M, Agrawal N, et al. Correlated Event-by-Event Fluctuations of Flow Harmonics in Pb-Pb Collisions at √sNN = 2.76 TeV. Physical Review Letters. 2016;117(18):174 - 177. http://hdl.handle.net/11427/34654.en_ZA
dc.publisher.departmentDepartment of Physics
dc.publisher.facultyFaculty of Science
dc.sourcePhysical Review Letters
dc.source.journalissue18
dc.source.journalvolume117
dc.source.pagination174 - 177
dc.source.urihttps://dx.doi.org/10.1103/PhysRevLett.117.182301
dc.subject.otherSubatomär fysik
dc.subject.otherColliding beam accelerators
dc.subject.otherHeavy ions
dc.subject.otherLead
dc.subject.otherTellurium compounds
dc.subject.otherAnisotropic flows
dc.subject.otherCenter-of-mass energies
dc.subject.otherEvent-by-event fluctuations
dc.subject.otherHeavy ion collision
dc.subject.otherInitial conditions
dc.subject.otherLarge Hadron Collider
dc.subject.otherNucleus-nucleus collision
dc.subject.otherPb-Pb collisions
dc.subject.otherHarmonic analysis
dc.titleCorrelated Event-by-Event Fluctuations of Flow Harmonics in Pb-Pb Collisions at √sNN = 2.76 TeV
dc.typeJournal Article
uct.type.publicationResearch
uct.type.resourceJournal Article
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