Heavy-Quark Thermalization and Resonances in the QGP Ralf Rapp Cyclotron Institute + Physics Department Texas A&M University College Station, USA With: H. van Hees (Texas A&M), V. Greco (Texas A&M, Catania) Quark Matter 2005 Conference Budapest (Hungary), 06.08.05
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Heavy-Quark Thermalization and Resonances in the QGP
Heavy-Quark Thermalization and Resonances in the QGP. Ralf Rapp Cyclotron Institute + Physics Department Texas A&M University College Station, USA With: H. van Hees (Texas A&M), V. Greco (Texas A&M, Catania) Quark Matter 2005 Conference Budapest (Hungary), 06.08.05. - PowerPoint PPT Presentation
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Heavy-Quark Thermalization
and Resonances in the QGP
Ralf Rapp Cyclotron Institute + Physics Department
Texas A&M University College Station, USA
With: H. van Hees (Texas A&M), V. Greco (Texas A&M, Catania)
Quark Matter 2005 Conference Budapest (Hungary), 06.08.05
• large sensitivity to radial flow (t,max=0.5-0.65)
[Thews+Mangano ’05]
[Greco,Ko+RR ’04]
Quark Coalescence at Tc
6.) Summary
• “D”-meson resonances in QGP (lQCD spectral fcts., potentials) c(b)-quark thermalization ~4(12)fm/c (elastic scattering), (factor ~3 faster than pQCD)
• Langevin simulation for RHIC + coalescence/fragmentation: - electrons: v2 ≤ 11% , RAA ≥ 0.45 (MinBias), “compromised” by bottom - predictions similar to new PHENIX data
• sQGP elastic scattering (resonances) prevalent over radiation at low / medium pt !?