Details

Autor(en) / Beteiligte

• Romatschke, P.

Titel

Causal viscous hydrodynamics for central heavy-ion collisions II: meson spectra and HBT radii

Ist Teil von

• The European physical journal. C, Particles and fields, 2007-09, Vol.52 (1), p.203-209

Ort / Verlag

Heidelberg: Springer Nature B.V

Erscheinungsjahr

2007

Link zum Volltext

Quelle

SpringerLink Journals - AutoHoldings

Beschreibungen/Notizen

• Causal viscous hydrodynamic fits to experimental data for pion and kaon transverse momentum spectra from central Au + Au collisions at are presented. Starting the hydrodynamic evolution at 1 fm/c and using small values for the relaxation time, reasonable fits up to moderate ratios, η/s≃0.4, can be obtained. It is found that a percentage of roughly 50 η/s to 75 η/s of the final meson multiplicity is due to viscous entropy production. Finally, it is shown that with increasing viscosity, the ratio of HBT radii Rout/Rside approaches and eventually matches the experimental data.