Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Production of Charge in Heavy Ion Collisions   By analyzing preliminary experimental measurements of charge-balance
functions from the STAR Collaboration at the Relativistic-Heavy-Ion Collider
(RHIC), it is found that pictures where balancing charges are produced in a
single surge, and therefore separated by a single length scale, are
inconsistent with data. In contrast, a model that assumes two surges, one
associated with the formation of a thermalized quark-gluon plasma and a second
associated with hadronization, provides a far superior reproduction of the
data. A statistical analysis of the model comparison finds that the two-surge
model best reproduces the data if the charge production from the first surge is
similar to expectations for equilibrated matter taken from lattice gauge
theory. The charges created in the first surge appear to separate by
approximately one unit of spatial rapidity before emission, while charges from
the second wave appear to have separated by approximately a half unit or less.

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The categories of this paper are: math-ph
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-ex
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-ex
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The categories of this paper are: stat
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio