Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Limiting fragmentation of chemical potentials in heavy ion collisions   Thermal models have been used to successfully describe the hadron yields from
heavy ion collisions at a variety of energies. For root(S)<17 GeV this has
usually been done using yields integrated over 4pi but at the higher energies
available at RHIC, yields measured at central rapidity have been used. Recent
BRAHMS data allows us to test whether thermal models can be generalized to
describe the rapidity dependence of particle ratios. We have used the THERMUS
package to fit BRAHMS data for the 5% most central Au+Au collisions for several
rapidities at root(S) = 62 and 200 GeV. We have found a relationship between
the strange and light quark chemical potentials, muS = 0.21 +-0.01muB. Using
this relation we are able to describe the energy dependence of Lambda, Xsi and
Omega ratios from other experiments. We also find that the chemical potentials
are consistent with limiting fragmentation.

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The categories of this paper are: plasm-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: dg-ga
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The categories of this paper are: q-alg
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The categories of this paper are: mtrl-th
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The categories of this paper are: q-bio
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The categories of this paper are: hep-ex
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The categories of this paper are: atom-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: stat
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The categories of this paper are: adap-org
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The categories of this paper are: math-ph
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The categories of this paper are: econ
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The categories of this paper are: hep-th
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The categories of this paper are: q-fin
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The categories of this paper are: eess