Thermal Dileptons at LHC

By N. Armesto, N. Borghini, Sangyong Jeon, U. Wiedemann, S. Abreu, S. V. Akkelin, J. Alam, J. Albacete, A. Andronic, D. Antonov and 161 more. 2007

212 citations recorded by the source corpus.

We predict dilepton invariant-mass spectra for central 5.5 ATeV Pb-Pb collisions at LHC. Hadronic emission in the low-mass region is calculated using in-medium spectral functions of light vector mesons within hadronic many-body theory. In the intermediate-mass region thermal radiation from the Quark-Gluon Plasma, evaluated perturbatively with hard-thermal loop corrections, takes over. An important source over the entire mass range are decays of correlated open-charm hadrons, rendering the nuclear modification of charm and bottom spectra a critical ingredient.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/f01b1b9779d33d9d7de1242e24c595618aea0658

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In Nuclear and High Energy Physics

Citations in the corpus

Gauge/String Duality, Hot QCD and Heavy Ion Collisions (2011, background): “Estimates for the charged particle multiplicity per unit pseudorapidity at this energy that were made before LHC heavy ion collisions began typically range from dNch/dη ≈ 1000 to dNch/dη ≈ 3000 [63].”
Entropy production in collisions of gravitational shock waves and of heavy ions (2008, methodology): “Calculations based on the Color Glass Condensate tend to predict lower multiplicities: for example, from figure 5 of [28], one may read off the prediction Ncharged ≈ 22000, about a factor of 2 below the estimate from (16); see also [29].”
Confronting LHC data with the statistical hadronization model (2013, background): “Employing UrQMD to model a hadron gas after hadronization significant reductions in the yields of (anti-)protons and cascades are observed for the current LHC energy.”
The ALICE TPC, a large 3-dimensional tracking device with fast readout for ultra-high multiplicity events (2010, background): “1More recent estimates [4] put this number at dNch/dy < 3 000.”
The phase diagram of dense QCD (2010, unknown): “higher energies [4, 5].”
Nonlinear QCD meets data: A global analysis of lepton-proton scattering with running coupling Balitsky-Kovchegov evolution (2009, background): “2 Predictions for future experimental programs Besides available experimental data, the experimental programmes at the LHC will test [19, 58, 72] our understanding of the small-x behavior of the nucleon structure.”