J.CleymansI.KrausH.OeschlerK.RedlichDoes Hadronization happen via Cluster formation?SQM2008,Beijing,Oct.7th,2008
Does Hadronization happen via Cluster formation? J. Cleymans I. Kraus H. Oeschler K. Redlich SQM2008, Beijing, Oct.7th, 2008
Chemical Freeze Out200RHICSPS150[Aaw]AGS100人SIS<E>/<N>=1 GeV5000200400600800[MeV]μB J. Cleymans and K. Redlich, PRL 81 (1998) 5284
Chemical Freeze Out J. Cleymans and K. Redlich, PRL 81 (1998) 5284
NA49 Data - 158 AGeV0.2Pb+Pb<,>/<,>>Si+Si0.1C+Cp+pdatastatistical model0.102110<N.Ingrid Kraus et al..Corr. vol. NOT prop to ApartPhys. Rev. C76 (2007) 064903
NA49 Data - 158 AGeV Ingrid Kraus et al., Phys. Rev. C76 (2007) 064903 Corr. vol. NOT prop to Apart
Canonical Suppression (SHM)Pion densityT=150 MeV0.20n(π) = exp(-E /T)T=120 MeVT=100 MeVStrangeness is conserved!0.15+SKaon densityk0.10T=80 MeVNNNΛK+0.05n(K) = exp(-Ek/T)T=60 MeV[g V J ... exp[-(Ex-μub)/T]0.00050100150200250J. Cleymans, HO, K. RedlichApartPRC 60 (1999)
Canonical Suppression (SHM) Pion density n(π) = exp(-Eπ /T) Strangeness is conserved! Kaon density NN N Λ K+ n(K) = exp(-EK /T) [g V ∫ . exp[-(EΛ -µB )/T] J. Cleymans, HO, K. Redlich, PRC 60 (1999)
Canonical Suppressioncan./grand can.△S=1△S=3Example:0.5K / 元T = 170 MeVA / 元三 / 元3μB = 1 MeV2 / 元Values for LHC1005R (fm)
Canonical Suppression can./grand can. Example: T = 170 MeV μB = 1 MeV Values for LHC ΔS=1 ΔS=3