Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Identified Particle Spectra and Anisotropic Flow in an Event-by-Event
  Hybrid Approach in Pb+Pb collisions at $\sqrt{s_{\rm NN}}=2.76$ TeV   The first results from heavy ion collisions at the Large Hadron Collider for
charged particle spectra and elliptic flow are compared to an event-by-event
hybrid approach with an ideal hydrodynamic expansion. This approach has been
shown to successfully describe bulk observables at RHIC. Without changing any
parameters of the calculation the same approach is applied to Pb+Pb collisions
at $\sqrt{s_{\rm NN}}=2.76$ TeV. This is an important test if the established
understanding of the dynamics of relativistic heavy ion collisions is also
applicable at even higher energies. Specifically, we employ the hybrid approach
with two different equations of state and the pure hadronic transport approach
to indicate sensitivities to finite viscosity. The centrality dependence of the
charged hadron multiplicity, $p_T$ spectra and differential elliptic flow are
shown to be in reasonable agreement with the ALICE data. Furthermore, we make
predictions for the transverse mass spectra of identified particles and
triangular flow. The eccentricities and their fluctuations are found to be
surprisingly similar to the ones at lower energies and therefore also the
triangular flow results are very similar. Any deviations from these predictions
will indicate the need for new physics mechanisms responsible for the dynamics
of heavy ion collisions.

28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
7
The categories of this paper are: hep-th