Measuring radial flow of partonic and hadronic phases in relativistic heavy ion collision

Abstract

It has been shown that the thermal photon and the lepton pair spectra can be used to estimate the radial velocity of different phases of the matter formed in nuclear collisions at ultra-relativistic energies. We observe a non-monotonic variation of the flow velocity with invariant mass of the lepton pair which is indicative of two different sources of thermal dilepton sources at early and late stage of the dynamically evolving system. We also show that the study of radial velocity through electromagnetic probes may shed light on the nature of the phase transition from hadrons to QGP.

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Cited by in corpus (7)

• Elliptic flow of thermal dileptons as a probe of QCD matter
• Radial Flow from Electromagnetic Probes and Signal of Quark Gluon Plasma
• Electromagnetic signals from Au+Au collisions at RHIC energy, $\sqrt{s_{NN}}$=200 GeV and Pb+Pb collisions at LHC energy, $\sqrt{s_{NN}}$=2.76 TeV
• Azimuthal distributions of radial momentum and velocity in relativistic heavy ion collisions
• Measurement of anisotropic radial flow in relativistic heavy ion collisions
• Characterization of relativistic heavy-ion collisions at the Large Hadron Collider through temperature fluctuations
• Heavy lepton pair production in nucleus-nucleus collisions at LHC energy - a case study