Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The fast life of holographic mesons   We use holographic techniques to study meson quasiparticles moving through a
thermal plasma in N=2 super-Yang-Mills theory, with gauge group SU(N_c) and
coupled to N_f flavours of fundamental matter. This holographic approach
reliably describes the system at large N_c, large 't Hooft coupling and
N_f/N_c<<1. The meson states are destabilized by introducing a small quark
density n_q. Spectral functions are used to examine the dispersion relations of
these quasiparticles. In a low-momentum regime, the quasiparticles approach a
limiting velocity which can be significantly less than the speed of light. In
this regime, the widths of the quasiparticles also rise dramatically as their
momentum approaches a critical value q_crit. While the spectral functions do
not display isolated resonances for q>q_crit, the dispersion relations can be
extended into this high-momentum regime by studying the dual quasinormal modes.
A preliminary qualitative analysis of these modes suggests that the group
velocity rises to the speed of light for q>>q_crit.

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The categories of this paper are: bayes-an
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The categories of this paper are: funct-an
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The categories of this paper are: plasm-ph
2
The categories of this paper are: math
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The categories of this paper are: atom-ph
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The categories of this paper are: math-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: gr-qc
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The categories of this paper are: cond-mat
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The categories of this paper are: astro-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: solv-int
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The categories of this paper are: econ
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The categories of this paper are: mtrl-th
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The categories of this paper are: comp-gas