Probing Hydrodynamics in PbPb Collisions at 5.02 TeV with Higher-order Cumulants
The elliptic flow of charged hadrons is studied through multiparticle correlations in PbPb collisions at √sNN = 5.02 TeV, corresponding to an integrated luminosity of 0.607 nb−1. v2 {2k} are measured up to the tenth order (k = 5) as functions of the collision centrality. They are shown to follow the...
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EDP Sciences
2025-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2025/01/epjconf_sqm2024_07006.pdf |
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| author | Dattamunsi Aryaa |
| author_facet | Dattamunsi Aryaa |
| author_sort | Dattamunsi Aryaa |
| collection | DOAJ |
| description | The elliptic flow of charged hadrons is studied through multiparticle correlations in PbPb collisions at √sNN = 5.02 TeV, corresponding to an integrated luminosity of 0.607 nb−1. v2 {2k} are measured up to the tenth order (k = 5) as functions of the collision centrality. They are shown to follow the ordering : v2{2} > v2{4} ≳ v2{6} ≳ v2{8} ≳ v2{10}. The centrality-dependent moments - skewness, kurtosis and, for the first time, superskewness, are measured for the fluctuation-driven event-by-event v2 distribution. These moments can be good probes of the initial-state geometry in high-energy nucleus-nucleus collisions, assuming a hydrodynamic expansion. |
| format | Article |
| id | doaj-art-ad48fc735c1948ceaf5a72dae487db8d |
| institution | Kabale University |
| issn | 2100-014X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj-art-ad48fc735c1948ceaf5a72dae487db8d2025-02-05T10:53:02ZengEDP SciencesEPJ Web of Conferences2100-014X2025-01-013160700610.1051/epjconf/202531607006epjconf_sqm2024_07006Probing Hydrodynamics in PbPb Collisions at 5.02 TeV with Higher-order CumulantsDattamunsi Aryaa0Indian Institute of Technology MadrasThe elliptic flow of charged hadrons is studied through multiparticle correlations in PbPb collisions at √sNN = 5.02 TeV, corresponding to an integrated luminosity of 0.607 nb−1. v2 {2k} are measured up to the tenth order (k = 5) as functions of the collision centrality. They are shown to follow the ordering : v2{2} > v2{4} ≳ v2{6} ≳ v2{8} ≳ v2{10}. The centrality-dependent moments - skewness, kurtosis and, for the first time, superskewness, are measured for the fluctuation-driven event-by-event v2 distribution. These moments can be good probes of the initial-state geometry in high-energy nucleus-nucleus collisions, assuming a hydrodynamic expansion.https://www.epj-conferences.org/articles/epjconf/pdf/2025/01/epjconf_sqm2024_07006.pdf |
| spellingShingle | Dattamunsi Aryaa Probing Hydrodynamics in PbPb Collisions at 5.02 TeV with Higher-order Cumulants EPJ Web of Conferences |
| title | Probing Hydrodynamics in PbPb Collisions at 5.02 TeV with Higher-order Cumulants |
| title_full | Probing Hydrodynamics in PbPb Collisions at 5.02 TeV with Higher-order Cumulants |
| title_fullStr | Probing Hydrodynamics in PbPb Collisions at 5.02 TeV with Higher-order Cumulants |
| title_full_unstemmed | Probing Hydrodynamics in PbPb Collisions at 5.02 TeV with Higher-order Cumulants |
| title_short | Probing Hydrodynamics in PbPb Collisions at 5.02 TeV with Higher-order Cumulants |
| title_sort | probing hydrodynamics in pbpb collisions at 5 02 tev with higher order cumulants |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2025/01/epjconf_sqm2024_07006.pdf |
| work_keys_str_mv | AT dattamunsiaryaa probinghydrodynamicsinpbpbcollisionsat502tevwithhigherordercumulants |