### Session Q10: Relativistic Heavy Ions II

10:45 AM–12:33 PM, Monday, April 2, 2012
Room: Embassy A

Chair: Berndt Mueller, Duke University

Abstract ID: BAPS.2012.APR.Q10.1

### Abstract: Q10.00001 : Strangeness Signature of Quark Gluon Plasma at LHC

10:45 AM–10:57 AM

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#### Author:

Johann Rafelski
(Department of Physics, University of Arizona)

The Alice experiment at LHC has reported kaon and multistrange particle $\overline\Xi, \Xi, \overline\Omega, \Omega$ production multiplicity $dN/dy$ at central rapidity, which we interpret in terms of the statistical hadronization particle production model. This allows the determination of the total strangeness per entropy yield as well as the prediction of not yet reported yields of particles such as single strange $\overline\Lambda, \Lambda$ and the multiply strange $\phi$. We perform this analysis as function of collision centrality and show that for several most central triggers our analysis produces an outcome that is extraordinarily similar. We than use this insight to combine the pertinent data in order to determine the bulk properties of the fireball particle source with unprecedented precision. This helps to establish the hadronization pressure and hadronization energy density of the bulk. We further compare the volume of the fireball source $dV/dy$ with that reported by HBT analysis in order to demonstrate that the LHC generated bulk matter must be expanding more violently, and that it breaks apart at a lower $T$ than is the case at RHIC.

To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2012.APR.Q10.1