Three options for SHM calculations:a) Canonical with R given by system sizeb) Additionally strangeness suppression via c) Canonical suppression is controlled by Rowhich can differ from the system size R(cluster!)RI. Kraus, J. Cleymans, H. O., K. RedlichSystem size: Phys. Rev. C76 (2007) 064903Rc
Three options for SHM calculations: a) Canonical with R given by system size b) Additionally strangeness suppression via γs c) Canonical suppression is controlled by RC which can differ from the system size R (cluster!) I. Kraus, J. Cleymans, H. O., K. Redlich, System size: Phys. Rev. C76 (2007) 064903 R RC
data.data102Pb-Pb4TC-CmidrapX(a)x/n=2.078X (a)x2/n=2.236(b) ×/n= 0.434X(b)×/n=0.810(c)2/n=0.633(c）×/n=0.867pre!童10AAKtK元AKA元AK元71KATKPhys. Rev. C76 (2007) 064903
Phys. Rev. C76 (2007) 064903
System size (and energy dep.) of cluster sizeRCR(uy)Pb+Pb&Au+Au05101021KNR (fm)part A+A: clusters smaller than fireballRc not well defined for Rc ≥ 2 fm because suppressionvanishes
System size (and energy dep.) of cluster size • A+A: clusters smaller than fireball • RC not well defined for RC ≥ 2 fm because suppression vanishes Pb+Pb Au+Au
For heavy systems possibly the correlationvolume extends over about 2-3 fmThen no canonical suppression can beobserved in the particle ratios!
For heavy systems possibly the correlation volume extends over about 2-3 fm. Then no canonical suppression can be observed in the particle ratios!
Same three options for pp collisionsa) Canonical with R given by system sizeb) Additionally strangeness suppression via c) Canonical suppression is controlled by Rowhich can differ from the system size R(cluster!)RI. Kraus, J. Cleymans, H. O., K. Redlich.Rcpp: arXiv:0808:0611
Same three options for pp collisions: a) Canonical with R given by system size b) Additionally strangeness suppression via γs c) Canonical suppression is controlled by RC which can differ from the system size R (cluster!) I. Kraus, J. Cleymans, H. O., K. Redlich, pp: arXiv:0808:0611 R RC