Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Viscous Effects on the Mapping of the Initial to Final State in Heavy
  Ion Collisions   We investigate the correlation between various aspects of the initial
geometry of heavy ion collisions at the Relativistic Heavy Ion Collider
energies and the final anisotropic flow, using v-USPhydro, a 2+1 event-by-event
viscous relativistic hydrodynamical model. We test the extent of which shear
and bulk viscosity affect the prediction of the final flow harmonics, $v_n$,
from the initial eccentricities, $\varepsilon_n$. We investigate in detail the
flow harmonics $v_1$ through $v_5$ where we find that $v_1$, $v_4$, and $v_5$
are dependent on more complicated aspects of the initial geometry that are
especially important for the description of peripheral collisions, including a
non-linear dependence on eccentricities as well as a dependence on
shorter-scale features of the initial density. Furthermore, we compare our
results to previous results from NeXSPheRIO, a 3+1 relativistic ideal
hydrodynamical model that has a non-zero initial flow contribution, and find
that the combined contribution from 3+1 dynamics and non-zero, fluctuating
initial flow decreases the predictive ability of the initial eccentricities, in
particular for very peripheral collisions, but also disproportionately in
central collisions.

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The categories of this paper are: q-alg
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The categories of this paper are: alg-geom
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The categories of this paper are: stat
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The categories of this paper are: patt-sol
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The categories of this paper are: adap-org
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-ex
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The categories of this paper are: eess
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The categories of this paper are: chem-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: math-ph
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The categories of this paper are: q-bio
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The categories of this paper are: math
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The categories of this paper are: comp-gas
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The categories of this paper are: econ
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The categories of this paper are: cmp-lg