Dilepton flow and deconfinement phase transition in heavy ion collisions

Details Dilepton flow and deconfinement phase transition in heavy ion collisions Dilepton flow and deconfinement phase transition in heavy ion collisions

2010-09-16

arxiv.org/abs/1009.3091v2

Phys.Lett.B701:581-586,2011

Physics

Nuclear Physics

Nuclear Theory

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

Scientific paper

10.1016/j.physletb.2011.06.027

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.

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