The contribution of NLO and LPM corrections to thermal dilepton emission in heavy ion collisions

Abstract

Recently lots of efforts have been made to obtain the next to leading order and Landau-Pomeranchuk-Migdal corrections to the thermal dilepton emission rate in perturbative QCD. Here we apply these results to the plasma created in heavy ion collisions and see wether these corrections improve the comparison between theoretical calculations and experimental results for the invariant mass dependence of the dilepton emission rate. In particular, we simulate the quark-gluon plasma produced at RHIC and LHC using a 2+1-dimensional viscous hydro model. We compare our results to STAR experiment and comment on the need for a non-perturbative determination of the dilepton rate at low invariant mass.

9 pages, 11 figures

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• Relativistic viscous hydrodynamics, conformal invariance, and holography
• Particle spectra and HBT radii for simulated central nuclear collisions of C+C, Al+Al, Cu+Cu, Au+Au, and Pb+Pb from Sqrt(s)=62.4-2760 GeV
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Cited by in corpus (7)

• Lattice QCD and heavy ion collisions: a review of recent progress
• Lattice constraints on the thermal photon rate
• Dilepton production and elliptic flow from an anisotropic quark-gluon plasma
• Dilepton production at next-to-leading order and intermediate invariant-mass observables
• Testing thermal photon and dilepton rates
• Lattice QCD results on soft and hard probes of strongly interacting matter
• Thermal dilepton production in collisional hot QCD medium in the presence of chromo-turbulent fields