Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quark production in heavy ion collisions I. Formalism and boost
  invariant fermionic light-cone mode functions   We revisit the problem of quark production in high energy heavy ion
collisions, at leading order in $\alpha_s$ in the color glass condensate
framework. In this first paper, we setup the formalism and express the quark
spectrum in terms of a set of mode functions of the Dirac equation. We
determine analytically their initial value in the Fock-Schwinger gauge on a
proper time surface $Q_s\tau_0\ll 1$, in a basis which makes manifest the boost
invariance properties of this problem. We also describe a statistical algorithm
to perform the sampling of the mode functions.

1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
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The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
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The categories of this paper are: q-fin
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The categories of this paper are: hep-lat
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The categories of this paper are: eess
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The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
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The categories of this paper are: nlin
2
The categories of this paper are: math
37
The categories of this paper are: supr-con