### Abstract

A 1+3 dimensional solution of relativistic hydrodynamics is analyzed in this paper. Momentum distribution and other observables are calculated from the solution and compared to hadronic measurements from the Relativistic Heavy Ion Collider (RHIC). The solution is compatible with the data, but only the freeze-out point of the evolution is determined. Many equation of states and initial states (initial temperatures) are valid with the same freeze-out distribution, thus the same hadronic observables. The observable that would distinguish between these initial temperatures is momentum distribution of photons, as photons are created throughout the evolution of the fireball created in RHIC collisions. The PHENIX experiment at RHIC measures such data via low invariant mass e^{+}e^{-} pairs. Average temperature from this data is T = 221 ± 23(stat)±18(sys) MeV, while a model calculation with initial temperature T_{init} = 370 MeV agree with the data.

Original language | English |
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Title of host publication | GRIBOV-80 Memorial Volume: Quantum Chromodynamics and Beyond - Proceedings of the Memorial Workshop Devoted to the 80th Birthday of V N Gribov |

Pages | 319-330 |

Number of pages | 12 |

Publication status | Published - 2011 |

Event | Memorial Workshop Devoted to the 80th Birthday of V N Gribov on Quantum Chromodynamics and Beyond - Trieste, Italy Duration: May 26 2010 → May 28 2010 |

### Other

Other | Memorial Workshop Devoted to the 80th Birthday of V N Gribov on Quantum Chromodynamics and Beyond |
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Country | Italy |

City | Trieste |

Period | 5/26/10 → 5/28/10 |

### Fingerprint

### Keywords

- Equation of state
- Hadron spectra
- Heavy ion collisions
- Hydrodynamics
- Photon spectra
- Temperature

### ASJC Scopus subject areas

- Nuclear and High Energy Physics

### Cite this

*GRIBOV-80 Memorial Volume: Quantum Chromodynamics and Beyond - Proceedings of the Memorial Workshop Devoted to the 80th Birthday of V N Gribov*(pp. 319-330)

**Initial temperature of the strongly interacting quark gluon plasma created at RHIC.** / Csanád, M.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

*GRIBOV-80 Memorial Volume: Quantum Chromodynamics and Beyond - Proceedings of the Memorial Workshop Devoted to the 80th Birthday of V N Gribov.*pp. 319-330, Memorial Workshop Devoted to the 80th Birthday of V N Gribov on Quantum Chromodynamics and Beyond, Trieste, Italy, 5/26/10.

}

TY - GEN

T1 - Initial temperature of the strongly interacting quark gluon plasma created at RHIC

AU - Csanád, M.

PY - 2011

Y1 - 2011

N2 - A 1+3 dimensional solution of relativistic hydrodynamics is analyzed in this paper. Momentum distribution and other observables are calculated from the solution and compared to hadronic measurements from the Relativistic Heavy Ion Collider (RHIC). The solution is compatible with the data, but only the freeze-out point of the evolution is determined. Many equation of states and initial states (initial temperatures) are valid with the same freeze-out distribution, thus the same hadronic observables. The observable that would distinguish between these initial temperatures is momentum distribution of photons, as photons are created throughout the evolution of the fireball created in RHIC collisions. The PHENIX experiment at RHIC measures such data via low invariant mass e+e- pairs. Average temperature from this data is T = 221 ± 23(stat)±18(sys) MeV, while a model calculation with initial temperature Tinit = 370 MeV agree with the data.

AB - A 1+3 dimensional solution of relativistic hydrodynamics is analyzed in this paper. Momentum distribution and other observables are calculated from the solution and compared to hadronic measurements from the Relativistic Heavy Ion Collider (RHIC). The solution is compatible with the data, but only the freeze-out point of the evolution is determined. Many equation of states and initial states (initial temperatures) are valid with the same freeze-out distribution, thus the same hadronic observables. The observable that would distinguish between these initial temperatures is momentum distribution of photons, as photons are created throughout the evolution of the fireball created in RHIC collisions. The PHENIX experiment at RHIC measures such data via low invariant mass e+e- pairs. Average temperature from this data is T = 221 ± 23(stat)±18(sys) MeV, while a model calculation with initial temperature Tinit = 370 MeV agree with the data.

KW - Equation of state

KW - Hadron spectra

KW - Heavy ion collisions

KW - Hydrodynamics

KW - Photon spectra

KW - Temperature

UR - http://www.scopus.com/inward/record.url?scp=84885896778&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84885896778&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84885896778

SN - 9814350184

SN - 9789814350181

SP - 319

EP - 330

BT - GRIBOV-80 Memorial Volume: Quantum Chromodynamics and Beyond - Proceedings of the Memorial Workshop Devoted to the 80th Birthday of V N Gribov

ER -