1. Hagedorn states and Thermalization DM2010, High Density Nuclear Matter, Stellenbosch, South Africa (courtesy L. Ferroni)

7. Hadronization at the phase boundary…?

12. Hadronization – molecular dynamical simulation C. Traxler et al., PRC59 1620 (1999) … Hagedorn spectrum

13. Hadron Resonance Gas with Hagedorn States and comparison to lattice QCD close to Hagedorn spectrum: RBC collaboration : J. Noronha-Hostler, J. Noronha, CG arXiv:0909.2908

14. The order and shape of QGP phase transition I.Zakout, CG and J. Schaffner-Bielich, NPA 781 (2007) 150, PRC78:034916 and arXiv: 1002.3119 density of states:

15. Crossover transition in bag-like models L. Ferroni and V. Koch, PRC79 (2009) 034905 density of states:

16. Strangeness production at SpS energies J. Geiss Production of Antihyperons: QGP signature…? P. Koch, B. Müller, J. Rafelski

17. Production of Anti-Baryons R.Rapp and E. Shuryak, Phys.Rev.Lett.86 (2001) 2980 C.Greiner and S.Leupold, J.Phys. G27 (2001) L95 Multimesonic channels But But : SPS

18. Chemical Freeze-out and of QCD Hadronic resonance gas vs. lattice: (P. Braun-Munzinger, J. Stachel, C. Wetterich, Phys.Lett.B596:61-69 (2004)) Chemical equilibration of baryon / anti-baryons: Multimesonic channels:

19. Possible solution by Hagedorn states C. Greiner, P. Koch, F. Liu, I. Shovkovy, H. Stöcker J.Phys.G31 (2005)‏

20. Estimate for baryon/antibaryon production

21. (Micro)canonical decay of Hagedorn States (Fuming Liu)‏

22. Rate Equations J. Noronha-Hostler, CG, I. Shovkovy, PRL 100:252301, 2008; and arXiv:0909.2908

23. Decay Widths Linear fit (PDG)‏ Baryon anti-baryon decay ((micro)canonical)‏ the average proton number is Analogously for Kaons, Lambdas and Omegas (!) for

24. Time Scale Estimate Assuming and whereand

25. Rising Populations pions and HS held at equilibrium : kaons protons

26. Expanding fireball Varying parameters has only small effect!

27. protons Varying parameters has only small effect!

28. kaons

29. Lambdas

30. Omegas M. Beitel

31. The strange sector of baryons/antibaryons

32. Importance of baryonic HS ?

33. Summary Potential Hagedorn States close to critical temperature: can explain fast chemical equilibration by HS regeneration roughly: smaller shear viscosity of QCD matter at Future: embedding into UrQMD J. Noronha-Hostler, M. Beitel, CG, I.Shovkovy arXiv:0909.2908, PRC in press

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37. Particle Ratios as a Probe of the QCD Critical Temperature J. Noronha-Hostler, H. Ahmad, J. Noronha, CG, arXiv:0906.3960 Hagedorn States provide a unique method to compare lattice results for Tc using thermal fits Hagedorn states provide a lower chi^2 than thermal fits without Hagedorn states

38. Transport Coefficients of Hadronic Matter near J. Noronha-Hostler, J. Noronha, CG, PRL 103:172302 (2009) While both η (due to the small MFP of HS) and s increase with increasing T, the entropy increases quicker close to Tc, which decreases η/s. of a hadron gas including HS matches well with the lattice at HRG HS

39. 39 Baryonfusion Quark annihilation Recombination Three-particle interactions through parton rearrangement Elliptic flow excitation function UrQMD+ Recombination, Baryonfusion, Quark annihilation [H.Petersen et al., arXiv:0805.0567v1 (2008)] [G.Gräf, diploma thesis, Frankfurt (2009)] Lambda multiplicity Same mechanism previously implemented in QGSM [Bleibel, Burau et al., arXiv: nucl-th/0610021 (2007)] [Bleibel, Burau et al., arXiv: 0711.3366 (2008)] - preliminary -

40. C.Greiner, AIP Conf. Proc. 644:337 (2003)‏

41. production at RHIC I. Shovkovy, J. Kapusta (2003) Thermal rates within chiral SU(3) description Chemical population of baryons / anti-baryons: P. Huovinen, J. Kapusta (2004) Insufficient by a factor of 3 to 4

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