1307.3978 (Frithjof Karsch)
Frithjof Karsch
Higher order moments of net conserved charge fluctuations, in particular net baryon number and net electric charge, are sensitive thermodynamic observables that respond strongly to critical behavior in strong interaction matter. In order to use them also as a sensible probe to detect critical behavior in heavy ion experiments we not only need to better understand the relation between chemical freeze-out in heavy ion collision and the QCD phase boundary, we also need to verify that charge fluctuations measured experimentally indeed correspond to thermal conditions as described by equilibrium QCD. This requires a model independent characterization of thermal conditions for which cumulants of conserved charge fluctuations themselves are ideally suited.
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http://arxiv.org/abs/1307.3978
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