Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Net-baryon-, net-proton-, and net-charge kurtosis in heavy-ion
  collisions within a relativistic transport approach   We explore the potential of net-baryon, net-proton and net-charge kurtosis
measurements to investigate the properties of hot and dense matter created in
relativistic heavy-ion collisions. Contrary to calculations in a grand
canonical ensemble we explicitly take into account exact electric and baryon
charge conservation on an event-by-event basis. This drastically limits the
width of baryon fluctuations. A simple model to account for this is to assume a
grand-canonical distribution with a sharp cut-off at the tails. We present
baseline predictions of the energy dependence of the net-baryon, net-proton and
net-charge kurtosis for central ($b\leq 2.75$ fm) Pb+Pb/Au+Au collisions from
$E_{lab}=2A$ GeV to $\sqrt{s_{NN}}=200$ GeV from the UrQMD model. While the
net-charge kurtosis is compatible with values around zero, the net-baryon
number decreases to large negative values with decreasing beam energy. The
net-proton kurtosis becomes only slightly negative for low $\sqrt{s_{NN}}$.

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The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
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The categories of this paper are: chao-dyn
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The categories of this paper are: bayes-an
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The categories of this paper are: comp-gas
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The categories of this paper are: supr-con
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The categories of this paper are: eess
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The categories of this paper are: q-fin
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The categories of this paper are: math
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The categories of this paper are: hep-th
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The categories of this paper are: mtrl-th
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The categories of this paper are: alg-geom