Divergence-type 2+1 dissipative hydrodynamics applied to heavy-ion collisions
We apply divergence-type theory (DTT) dissipative hydrodynamics to study the 2+1 space-time evolution of the fireball created in Au+Au relativistic heavy-ion collisions at √sNN=200 GeV. DTTs are exact hydrodynamic theories that do not rely on velocity gradient expansions and therefore go beyond seco...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_05562813_v82_n5_p_PeraltaRamos |
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todo:paper_05562813_v82_n5_p_PeraltaRamos2023-10-03T15:35:06Z Divergence-type 2+1 dissipative hydrodynamics applied to heavy-ion collisions Peralta-Ramos, J. Calzetta, E. We apply divergence-type theory (DTT) dissipative hydrodynamics to study the 2+1 space-time evolution of the fireball created in Au+Au relativistic heavy-ion collisions at √sNN=200 GeV. DTTs are exact hydrodynamic theories that do not rely on velocity gradient expansions and therefore go beyond second-order theories. We numerically solve the equations of motion of the DTT for Glauber initial conditions and compare the results with those of second-order theory based on conformal invariance (Baier-Romatschke- Son-Starinets model) and with data. We find that the charged-hadron minimum-bias elliptic flow reaches its maximum value at lower pT in the DTT, and that the DTT allows for a value of η/s slightly larger than that of the BRSS. Our results show that the differences between viscous hydrodynamic formalisms are a significant source of uncertainty in the precise extraction of η/s from experiments. © 2010 The American Physical Society. Fil:Peralta-Ramos, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Calzetta, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_05562813_v82_n5_p_PeraltaRamos |
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Universidad de Buenos Aires |
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I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
We apply divergence-type theory (DTT) dissipative hydrodynamics to study the 2+1 space-time evolution of the fireball created in Au+Au relativistic heavy-ion collisions at √sNN=200 GeV. DTTs are exact hydrodynamic theories that do not rely on velocity gradient expansions and therefore go beyond second-order theories. We numerically solve the equations of motion of the DTT for Glauber initial conditions and compare the results with those of second-order theory based on conformal invariance (Baier-Romatschke- Son-Starinets model) and with data. We find that the charged-hadron minimum-bias elliptic flow reaches its maximum value at lower pT in the DTT, and that the DTT allows for a value of η/s slightly larger than that of the BRSS. Our results show that the differences between viscous hydrodynamic formalisms are a significant source of uncertainty in the precise extraction of η/s from experiments. © 2010 The American Physical Society. |
| format |
JOUR |
| author |
Peralta-Ramos, J. Calzetta, E. |
| spellingShingle |
Peralta-Ramos, J. Calzetta, E. Divergence-type 2+1 dissipative hydrodynamics applied to heavy-ion collisions |
| author_facet |
Peralta-Ramos, J. Calzetta, E. |
| author_sort |
Peralta-Ramos, J. |
| title |
Divergence-type 2+1 dissipative hydrodynamics applied to heavy-ion collisions |
| title_short |
Divergence-type 2+1 dissipative hydrodynamics applied to heavy-ion collisions |
| title_full |
Divergence-type 2+1 dissipative hydrodynamics applied to heavy-ion collisions |
| title_fullStr |
Divergence-type 2+1 dissipative hydrodynamics applied to heavy-ion collisions |
| title_full_unstemmed |
Divergence-type 2+1 dissipative hydrodynamics applied to heavy-ion collisions |
| title_sort |
divergence-type 2+1 dissipative hydrodynamics applied to heavy-ion collisions |
| url |
http://hdl.handle.net/20.500.12110/paper_05562813_v82_n5_p_PeraltaRamos |
| work_keys_str_mv |
AT peraltaramosj divergencetype21dissipativehydrodynamicsappliedtoheavyioncollisions AT calzettae divergencetype21dissipativehydrodynamicsappliedtoheavyioncollisions |
| _version_ |
1807322999605428224 |