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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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 Tinit = 370 MeV agree with the data.

Original languageEnglish
Title of host publicationGRIBOV-80 Memorial Volume
Subtitle of host publicationQuantum Chromodynamics and Beyond - Proceedings of the Memorial Workshop Devoted to the 80th Birthday of V N Gribov
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages319-330
Number of pages12
ISBN (Print)9814350184, 9789814350181
DOIs
Publication statusPublished - Jan 1 2011
EventMemorial Workshop Devoted to the 80th Birthday of V N Gribov on Quantum Chromodynamics and Beyond - Trieste, Italy
Duration: May 26 2010May 28 2010

Publication series

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

Other

OtherMemorial Workshop Devoted to the 80th Birthday of V N Gribov on Quantum Chromodynamics and Beyond
CountryItaly
CityTrieste
Period5/26/105/28/10

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

    Csanád, M. (2011). Initial temperature of the strongly interacting quark gluon plasma created at RHIC. In 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