### 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 |

Subtitle of host publication | Quantum Chromodynamics and Beyond - Proceedings of the Memorial Workshop Devoted to the 80th Birthday of V N Gribov |

Publisher | World Scientific Publishing Co. Pte Ltd |

Pages | 319-330 |

Number of pages | 12 |

ISBN (Print) | 9814350184, 9789814350181 |

DOIs | |

Publication status | Published - Jan 1 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 |

### Publication series

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

### Keywords

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

### ASJC Scopus subject areas

- Nuclear and High Energy Physics

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## 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). (GRIBOV-80 Memorial Volume: Quantum Chromodynamics and Beyond - Proceedings of the Memorial Workshop Devoted to the 80th Birthday of V N Gribov). World Scientific Publishing Co. Pte Ltd. https://doi.org/10.1142/9789814350198_0030