Critical Point Fluctuations in Heavy-Ion Collisions within Molecular Dynamics with Expansion
We analyze particle number fluctuations near the critical endpoint of a first-order phase transition using molecular dynamics simulations of the Lennard-Jones fluid. Building on our previous study [V.A. Kuznietsov et al., Phys. Rev. C 105, 044903 (2022)], we incorporate longitudinal collective flow....
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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_06003.pdf |
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| author | Kuznietsov Volodymyr A. Vovchenko Volodymyr Koch Volker Gorenstein Mark I. |
| author_facet | Kuznietsov Volodymyr A. Vovchenko Volodymyr Koch Volker Gorenstein Mark I. |
| author_sort | Kuznietsov Volodymyr A. |
| collection | DOAJ |
| description | We analyze particle number fluctuations near the critical endpoint of a first-order phase transition using molecular dynamics simulations of the Lennard-Jones fluid. Building on our previous study [V.A. Kuznietsov et al., Phys. Rev. C 105, 044903 (2022)], we incorporate longitudinal collective flow. The scaled variance of particle number distributions in various coordinate and momentum space acceptances is computed through ensemble averaging, confirming previous time-averaging results. We find that significant collective flow is crucial for observing large fluctuations from the critical point in momentum space. These results are discussed in the context of heavy-ion collisions. |
| format | Article |
| id | doaj-art-bef2f3f0f4d24da9a0b1bb2faca61d84 |
| 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-bef2f3f0f4d24da9a0b1bb2faca61d842025-02-05T10:53:02ZengEDP SciencesEPJ Web of Conferences2100-014X2025-01-013160600310.1051/epjconf/202531606003epjconf_sqm2024_06003Critical Point Fluctuations in Heavy-Ion Collisions within Molecular Dynamics with ExpansionKuznietsov Volodymyr A.0Vovchenko Volodymyr1Koch Volker2Gorenstein Mark I.3Physics Department, University of HoustonPhysics Department, University of HoustonNuclear Science Division, Lawrence Berkeley National LaboratoryDepartment of the high-density Energy Physics, Bogolyubov Institute for Theoretical PhysicsWe analyze particle number fluctuations near the critical endpoint of a first-order phase transition using molecular dynamics simulations of the Lennard-Jones fluid. Building on our previous study [V.A. Kuznietsov et al., Phys. Rev. C 105, 044903 (2022)], we incorporate longitudinal collective flow. The scaled variance of particle number distributions in various coordinate and momentum space acceptances is computed through ensemble averaging, confirming previous time-averaging results. We find that significant collective flow is crucial for observing large fluctuations from the critical point in momentum space. These results are discussed in the context of heavy-ion collisions.https://www.epj-conferences.org/articles/epjconf/pdf/2025/01/epjconf_sqm2024_06003.pdf |
| spellingShingle | Kuznietsov Volodymyr A. Vovchenko Volodymyr Koch Volker Gorenstein Mark I. Critical Point Fluctuations in Heavy-Ion Collisions within Molecular Dynamics with Expansion EPJ Web of Conferences |
| title | Critical Point Fluctuations in Heavy-Ion Collisions within Molecular Dynamics with Expansion |
| title_full | Critical Point Fluctuations in Heavy-Ion Collisions within Molecular Dynamics with Expansion |
| title_fullStr | Critical Point Fluctuations in Heavy-Ion Collisions within Molecular Dynamics with Expansion |
| title_full_unstemmed | Critical Point Fluctuations in Heavy-Ion Collisions within Molecular Dynamics with Expansion |
| title_short | Critical Point Fluctuations in Heavy-Ion Collisions within Molecular Dynamics with Expansion |
| title_sort | critical point fluctuations in heavy ion collisions within molecular dynamics with expansion |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2025/01/epjconf_sqm2024_06003.pdf |
| work_keys_str_mv | AT kuznietsovvolodymyra criticalpointfluctuationsinheavyioncollisionswithinmoleculardynamicswithexpansion AT vovchenkovolodymyr criticalpointfluctuationsinheavyioncollisionswithinmoleculardynamicswithexpansion AT kochvolker criticalpointfluctuationsinheavyioncollisionswithinmoleculardynamicswithexpansion AT gorensteinmarki criticalpointfluctuationsinheavyioncollisionswithinmoleculardynamicswithexpansion |