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Hadron momentum spectra from analytical solutions of relativistic hydrodynamics

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arxiv 2403.00624 v2 pith:Q63BM5RI submitted 2024-03-01 hep-ph nucl-th

Hadron momentum spectra from analytical solutions of relativistic hydrodynamics

classification hep-ph nucl-th
keywords analyticalspectramomentumresultstransversecalculatecerncompare
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present analytical solution of relativistic hydrodynamics for a system having cylindrical symmetry with boost-invariant longitudinal expansion and Hubble-like transverse expansion. We also consider analytical solution for Hubble-like spherically expanding system. For these two cases, we calculate analytical expression for transverse momentum spectra of hadrons, at constant temperature freeze-out hypersurface using Cooper-Frye prescription. We compare our results for transverse momentum spectra with experimental results from Large Hadron Collider and CERN SPS where one expects cylindrical and spherical geometry of the fireball, respectively. In the case of low-energy collisions with spherical geometry, we calculate rapidity spectra and compare with the results from CERN SPS.

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Cited by 1 Pith paper

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  1. An expanding spherical fireball model for light hadron production at RHIC ($\sqrt{s_{\rm NN}}=7.7$--$39$ GeV)

    nucl-th 2026-07 conditional novelty 4.0

    An expanding spherical fireball model with Cooper–Frye freeze-out describes STAR pT spectra of π±, K±, p, p̄ at √sNN=7.7–39 GeV and predicts Gaussian rapidity distributions.