Hadronic dissipative effects on elliptic flow in ultrarelativistic heavy-ion collisions
By Tetsufumi Hirano, Ulrich Heinz, D. Kharzeev, R. Lacey, Y. Nara. Physics Letters B, 2005
314 citations recorded by the source corpus.
Abstract We study the elliptic flow coefficient v 2 ( η , b ) in Au + Au collisions at s = 200 A GeV as a function of pseudorapidity η and impact parameter b. Using a hybrid approach which combines early ideal fluid dynamical evolution with late hadronic rescattering, we demonstrate strong dissipative effects from the hadronic rescattering stage on the elliptic flow. With Glauber model initial conditions, hadronic dissipation is shown to be sufficient to fully explain the differences between measured v 2 values and ideal hydrodynamic predictions. Initial conditions based on the Color Glass Condensate model generate larger elliptic flow and seem to require additional dissipation during the early quark–gluon plasma stage in order to achieve agreement with experiment.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/0a44d34e81ebaa2c80fa2243e5f83e863db13997
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In Nuclear and High Energy Physics
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Citations in the corpus
- Jet quenching in high-energy heavy-ion collisions (2015, methodology): “The space-time evolution of the medium is given by Hirano et al.144 Because of rapid cooling due to 3+1D expansion, the total jet energy loss flattens out approximately 10 fm/c after an initial linear rise (solid line).”
- Strongly correlated quantum fluids: ultracold quantum gases, quantum chromodynamic plasmas and holographic duality (2012, background): “A more sophisticated theory of the initial energy density is provided by the color glass condensate [252, 253].”
- Properties of hot and dense matter from relativistic heavy ion collisions (2015, methodology): “Ideally, these distribution functions are evolved further using a hadronic transport model [202,203], but at a minimum one has to include feed-down from hadronic resonance decays.”
- Stickiness of sound: An absolute lower limit on viscosity and the breakdown of second-order relativistic hydrodynamics (2011, background): “[8] T.”