Family of New Exact Solutions for Longitudinally Expanding Ideal Fluids
arXiv:2201.06670 · doi:10.1103/PhysRevC.105.L021902
Abstract
We report on the discovery of new analytical solutions of the equations of relativistic ideal hydrodynamics. In this solution, the fluid expands in the longitudinal direction and contains a plateau structure that extends over a finite range in rapidity and can be either symmetric or asymmetric in that variable. We further calculate the corresponding pseudo-rapidity distribution of hadron yields, and find decent agreement with experimental measurements in high-energy Pb+Pb, Au+Au, p+Pb, and d+Au collisions.
7 pages, 3 figures
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