Cumulants of mean transverse momentum and elliptic flow in the hydrodynamic model of heavy-ion collisions
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| Format: | Preprint |
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2026
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| _version_ | 1866918523925692416 |
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| author | Parida, Tribhuban Bożek, Piotr |
| author_facet | Parida, Tribhuban Bożek, Piotr |
| contents | Higher order cumulants between the mean transverse momentum and elliptic flow are calculated in a relativistic viscous hydrodynamic model of relativistic heavy-ion collisions. The results of the hydrodynamic simulations are compared with calculations using event-by-event predictors of the final collective observables constructed from the initial state entropy distribution. The predictors describes quantitatively centrality dependence of the higher cumulants considered in the paper. We derive a quantitative relations between the cumulants of the mean transverse momentum and different moments of the harmonic flow. The hydrodynamic simulations satisfy those relation very well. Those relations could be used to test experimentally the collective origin of the observed correlations between the mean transverse momentum and harmonic flow. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_26737 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Cumulants of mean transverse momentum and elliptic flow in the hydrodynamic model of heavy-ion collisions Parida, Tribhuban Bożek, Piotr Nuclear Theory High Energy Physics - Experiment High Energy Physics - Phenomenology Nuclear Experiment Higher order cumulants between the mean transverse momentum and elliptic flow are calculated in a relativistic viscous hydrodynamic model of relativistic heavy-ion collisions. The results of the hydrodynamic simulations are compared with calculations using event-by-event predictors of the final collective observables constructed from the initial state entropy distribution. The predictors describes quantitatively centrality dependence of the higher cumulants considered in the paper. We derive a quantitative relations between the cumulants of the mean transverse momentum and different moments of the harmonic flow. The hydrodynamic simulations satisfy those relation very well. Those relations could be used to test experimentally the collective origin of the observed correlations between the mean transverse momentum and harmonic flow. |
| title | Cumulants of mean transverse momentum and elliptic flow in the hydrodynamic model of heavy-ion collisions |
| topic | Nuclear Theory High Energy Physics - Experiment High Energy Physics - Phenomenology Nuclear Experiment |
| url | https://arxiv.org/abs/2605.26737 |