Dilepton Spectroscopy of QCD Matter at Collider Energies
Figure 4
Time evolution of fireball temperature in semicentral collisions at RHIC within (the central cell of) ideal hydrodynamics (a) [42] and an expanding fireball model (b). The dashed green and dotted blue lines in (a) are to be compared to the dashed green and solid blue lines in (b), respectively.
