Observables from a perturbative, accelerating solution of relativistic hydrodynamics

TL;DR

This paper introduces a perturbative, accelerating analytic solution to relativistic hydrodynamics, enhancing understanding of quark-gluon plasma evolution beyond numerical models.

Contribution

It presents a new perturbative, accelerating solution built on the relativistic Hubble flow, providing analytic insights into quark-gluon plasma dynamics.

Findings

Derived a class of perturbative solutions with acceleration

Calculated observables for a specific solution

Enhanced understanding of plasma evolution in heavy-ion collisions

Abstract

The discovery of the almost perfect fluid like nature of the strongly interacting quark-gluon plasma was one of the most important discoveries of heavy-ion physics in recent decades. The experimental results are well described by hydrodynamical models. Most of these models are numerical simulations, however the analytic solutions are also important in understanding the time evolution of the quark-gluon plasma created in the heavy-ion collisions. Here we present a perturbative, accelerating solution on top of a known solution, the relativistic Hubble flow. We describe the perturbative class of solutions, and calculate a few observables for a selected solution.