Dileptons and Photons at RHIC Energies
arXiv:0909.4976 · doi:10.1016/j.nuclphysa.2009.10.036
Abstract
Comparing dilepton data from Au+Au to p+p collisions at RHIC energies PHENIX revealed two striking features: (i) a large excess of the dilepton yield at low mass and low pT in central Au+Au and (ii) a significant enhancement of direct real photon radiation. Both features can be interpreted as thermal radiation from the hot quark matter produced at RHIC. Unlike at lower beam energies, at RHIC the contribution from the hot hadronic phase alone seems insufficient to account for the data. This suggests large a contribution from a partonic phase. Both experimental and theoretical progress are required for more detailed conclusions.
Invited talk at QM 2009, 8 pages, 12 figures
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Cited by in corpus (5)
- Thermal photons from heavy ion collisions: A spectral function approach
- Dilepton production in proton-proton and quasifree proton-neutron reactions at 1.25 GeV
- Large mass dilepton production from jet-dilepton conversion in the quark-gluon plasma
- Observing many body effects on lepton pair production from low mass enhancement and flow at RHIC and LHC energies
- Photon and dilepton production in high energy heavy ion collisions