Intensity interferometry of direct photons emitted in Au+Au collisions

Abstract

We calculate the two-body correlation function of direct photons produced in Au+Au collisions at the Relativistic Heavy Ion Collider. Our calculation includes contributions from the early pre-equilibrium phase in which photons are produced via hard parton scatterings as well as radiation of photons from a thermalized Quark-Gluon-Plasma (QGP) and the subsequent expanding hadron gas. We find that high energy photon intensity interferometry provides a faithful probe of the details of the space-time evolution and of the early reaction stages of the system.

arXiv comment4 pages, 4 eps figures - revised version, accepted for publication in PRL

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Cited by in corpus (23)

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• Review of HBT or Bose-Einstein correlations in high energy heavy ion collisions
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• Elliptic flow of thermal photons and dileptons
• Photonic measurements of the longitudinal expansion dynamics in Heavy-Ion collisions
• Probing the evolution of heavy-ion collisions using direct photon interferometry
• Electromagnetic probes
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• Excitation of Chandrasekhar-Kendall photons in Quark Gluon Plasma by an ultrarelativitsic quark
• Interference of thermal photons from quark and hadronic phases in relativistic collisions of heavy nuclei
• Illusory Flow in Radiation from Accelerating Charge
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• Yoctosecond metrology through HBT correlations from a quark-gluon plasma
• Search and study of Quark Gluon Plasma at the CERN-LHC
• Equation of state of strongly interacting matter: spectra for thermal particles and intensity correlation of thermal photons
• Why the xE distribution triggered by a leading particle does not measure the fragmentation function but does measure the ratio of the transverse momenta of the away-side jet to the trigger-side jet
• Two Photon Correlation in Anisotropic Quark-gluon plasma (aQGP)
• One-, two-, and three-dimensional photon femtoscopy