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Thermal dilepton and open charm signals versus hard initial yields in heavy-ion collisions at RHIC and LHC energies

Kämpfer, B.; Pavlenko, O. P.
Abstract
The hard initial production of open charm and dileptons is compared with possible thermal signals in heavy-ion collisions at RHIC and LHC energies. Our approach is based on the perturbative QCD mini-jet mechanism of quark-gluon matter formation. The thermal dilepton signal is found to rise much stronger as compared to the hard Drell - Yan background with increasing collider energy and clearly dominates at LHC energy. Oppositely, open charm stems from initial hard production. A possible rnanifestation of gluon shadowing at RHIC and LHC energies is discussed.
  • Open Access Logo Forschungszentrum Rossendorf; FZR-144 Preprint
  • Physics Letters B 391 (1997) pp. 185-190

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Permalink: https://www.hzdr.de/publications/Publ-588
Publ.-Id: 588