14th International Conference on Strangeness in Quark Matter | |
Diffusion of non-Gaussianity in heavy ion collisions | |
Kitazawa, Masakiyo^1 ; Asakawa, Masayuki^1 ; Ono, Hirosato^1 | |
Department of Physics, Osaka University, Osaka 560-0043 Toyonaka, Japan^1 | |
关键词: Dynamical evolution; Fourth order cumulant; Heavy ion collision; Higher order cumulants; Master equations; Non-Gaussian fluctuations; Parameter range; Relativistic heavy ion collision; | |
Others : https://iopscience.iop.org/article/10.1088/1742-6596/509/1/012053/pdf DOI : 10.1088/1742-6596/509/1/012053 |
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来源: IOP | |
【 摘 要 】
We investigate the time evolution of higher order cumulants of bulk fluctuations of conserved charges in the hadronic stage in relativistic heavy ion collisions. The dynamical evolution of non-Gaussian fluctuations is modeled by the diffusion master equation. Using this model we predict that the fourth-order cumulant of net-electric charge is suppressed compared with the recently observed second-order one at ALICE for a reasonable parameter range. Significance of the measurements of various cumulants as functions of rapidity window to probe dynamical history of the hot medium created by heavy ion collisions is emphasized.
【 预 览 】
Files | Size | Format | View |
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Diffusion of non-Gaussianity in heavy ion collisions | 604KB | download |