Dilepton Spectroscopy of QCD Matter at Collider Energies
Figure 3
(a) Euclidean correlators of the EM current as computed in quenched thermal lQCD (data points) [14], compared to results from integrating hadronic spectral functions using (5) without (dashed green line) and with in-medium effects (red lines, with free and in-medium continuum threshold) [37]. (b) Vector-isovector spectral functions at corresponding to the Euclidean correlators in (a) in vacuum (green dashed line), in hadronic matter calculated from many-body theory at MeV [13] (red solid line), and in a gluon plasma at extracted from thermal lattice-QCD (black solid line) [14]; the 3-momentum extended lQCD rates according to (8) are shown for (short-dashed lines, with (lower) and without (upper) form factor correction).
