Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quarks and light (pseudo-)scalar mesons at finite chemical potential   We investigate the properties of light scalar and pseudoscalar mesons at
finite (light) quark chemical potential. To this end we solve a coupled set of
(truncated) Dyson-Schwinger equations for the quark and gluon propagators in
Landau-gauge QCD and extent earlier results for $N_f=2+1$ dynamical quark
flavors to finite chemical potential at zero temperature. We then determine the
meson bound state masses, wave functions, and decay constants for chemical
potentials below the first-order phase transition from their homogeneous
Bethe-Salpeter equation. We study the changes in the quark dressing functions
and Bethe-Salpeter wave functions with chemical potential. In particular, we
trace charge-conjugation parity breaking. Furthermore, we confirm the validity
of the Silver-Blaze property: all dependencies of colored quantities on
chemical potential cancel out in observables and we observe constant masses and
decay constants up to and into the coexistence region of the first-order chiral
phase transition.

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The categories of this paper are: q-alg
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The categories of this paper are: atom-ph
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The categories of this paper are: stat
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The categories of this paper are: funct-an
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The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
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The categories of this paper are: bayes-an
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The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: acc-phys
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The categories of this paper are: alg-geom
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The categories of this paper are: dg-ga