Dilepton flow and deconfinement phase transition in heavy ion collisions

Abstract

The dilepton radial flow in Au+Au collisions at \sqrt{s_{NN}}=200 GeV is investigated. The space-time evolution of the fireball is described by a 2+1 dimensional ideal hydrodynamics with a variety of equations of state. The slope parameters of the transverse momentum spectra from the partonic and hadronic phases show distinct features and are sensitive to equation of state parameters. The elliptic flow and breaking of M_T scaling are also studied and have distinct features for the two phases. These features can serve as clean signals for the formation of a quark-gluon plasma in ultra-relativistic heavy ion collisions.

RevTex 4, 5 pages, 3 figures, to appear in PLB

References in corpus (7)

• Comprehensive Interpretation of Thermal Dileptons at the SPS
• Evidence for radial flow of thermal dileptons in high-energy nuclear collisions
• Dilepton mass spectra in p+p collisions at sqrt(s)= 200 GeV and the contribution from open charm
• Low Mass Dimuons Produced in Relativistic Nuclear Collisions
• Elliptic flow of thermal dileptons in relativistic nuclear collisions
• Dimuon transverse momentum spectra as a tool to characterize the emission region in heavy-ion collisions
• Dilepton production from a viscous QGP

Cited by in corpus (13)

• Challenges in QCD matter physics - The Compressed Baryonic Matter experiment at FAIR
• Thermal Photons and Collective Flow at the Relativistic Heavy-Ion Collider
• Measurements of Dielectron Production in Au$+$Au Collisions at $\sqrt{s_{\mathrm{NN}}}$ = 200 GeV from the STAR Experiment
• Dilepton emission in high-energy heavy-ion collisions with viscous hydrodynamics
• Di-electron production from vector mesons with medium modifications in heavy ion collisions
• Elliptic flow of thermal dileptons as a probe of QCD matter
• Charm quarks in medium and their contribution to di-electron spectra in relativistic heavy ion collisions
• Viscous modifications to quark and gluon distribution functions in quark-gluon plasma medium
• Observing many body effects on lepton pair production from low mass enhancement and flow at RHIC and LHC energies
• Decoding the flow evolution in Au+Au reactions at $1.23A$ GeV using hadron flow correlations and dileptons
• Elliptic flow of thermal dileptons in event-by-event hydrodynamic simulation
• Transverse mass scaling of dilepton radiation off a quark-gluon plasma
• Heavy lepton pair production in nucleus-nucleus collisions at LHC energy - a case study