Speaker
Description
Spatial correlation functions of quarkonia in the quark-gluon plasma are available from finite-temperature lattice-QCD with good precision. However, their interpretation in terms of microscopic spectral functions has been challenging due to numerical oscillations in the Fourier transform and the requirement of a reliable 3-momentum dependence. Utilizing the thermodynamic T-matrix, we first employ a separable-potential to establish a Lorentz-covariant scattering equation in vacuum. Medium effects are then included through state-of-the-art heavy-quark selfenergies, a zero-mode contribution derived from finite-temperature field theory, and a potential screening constrained by euclidean correlators at vanishing momentum. The resulting predictions for the 3-momentum quarkonium spectral functions can qualitatively reproduce the increase of euclidean correlators with 3-momentum, as well as the suppression the spatial correlator ratios, as found in lattice QCD.
| Is this an experimental talk? | No |
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| Is this on behalf of a collaboration? | No |
| Are you willing to present as a poster if it is not selected for oral presentation? | Yes |