Levy-shaped femtoscopic sources from an exact solution of relativistic hydrodynamics
Abstract
An important goal of high-energy physics is to better understand the spacetime structure of particle emitting sources created in heavy-ion collisions. For a fraction of a second a special form of matter, the so-called quark-gluon plasma (QGP) is created, which can be examined with the toolkit of femtoscopy. With the measurement of correlation functions it was determined that Lévy distributions describe the shape of QGP sources the most accurately, however, based on hydrodynamics Gaussian distributions are typically expected. In this article we showcase an exact solution of the equations of relativistic hydrodynamics, which aims to resolve this puzzle by providing Lévy distributions directly from hydrodynamics. A detailed analysis reveals whether the predictions of this solution are in accordance with observations.
Related
- Femtoscopic parameters of pion emission sources in EPOS4 Au+Au collisions from 7.7 to 200 GeV
- Searching for the QCD critical point with relativistic viscous hydrodynamics
- Shear viscosity from fluctuations in linearized relativistic hydrodynamics
- Scale invariant solutions in relativistic hydrodynamics
- Relativistic Covariance from Hamiltonian Hydrodynamics in the Chiral Limit
BibTeX
@misc{szentkuti2026levyshaped,
title = {{Levy-shaped femtoscopic sources from an exact solution of relativistic hydrodynamics}},
author = {Bence Szentkuti and Mate Csanad},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.13352},
eprint = {2610.13352},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.13352},
}
RIS
TY - UNPB
TI - Levy-shaped femtoscopic sources from an exact solution of relativistic hydrodynamics
AU - Bence Szentkuti
AU - Mate Csanad
PY - 2026
DA - 2026/10/09
PB - arXiv
DO - 10.48550/arxiv.2610.13352
UR - https://arxiv.org/abs/2610.13352
AB - An important goal of high-energy physics is to better understand the spacetime structure of particle emitting sources created in heavy-ion collisions. For a fraction of a second a special form of matter, the so-called quark-gluon plasma (QGP) is created, which can be examined with the toolkit of femtoscopy. With the measurement of correlation functions it was determined that Lévy distributions describe the shape of QGP sources the most accurately, however, based on hydrodynamics Gaussian distributions are typically expected. In this article we showcase an exact solution of the equations of relativistic hydrodynamics, which aims to resolve this puzzle by providing Lévy distributions directly from hydrodynamics. A detailed analysis reveals whether the predictions of this solution are in accordance with observations.
ER -