Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spectroscopy, Scaling and Critical Indices in Strongly Coupled Quenched
  QED   The interplay of spectroscopy, scaling laws and critical indices is studied
in strongly coupled quenched QED. Interpreted as a model of technicolor having
strong interactions at short distances, we predict the techni-meson mass
spectrum in a simplified model of a dynamically generated top quark mass $M_f$.
Our results support the strict inequality that the techni-sigma mass $M_\sigma$
is less than twice the dynamical quark mass $M_f$, and confirm that the
techni-pion is a Nambu-Goldstone boson. The level ordering $0 = M_\pi <
M_\sigma < 2M_f < M_\rho < M_{a1} $ is found.An equation of state, and scaling
laws are derived for the techni-meson masses by exploiting correlation length
scaling. The resulting universality relations are confirmed by simulations on
$16^4$, $32\times 16^3$ and $32^4$ lattices. The anomalous dimension $\eta$ is
measured to be approximatively $0.50$ in good agreement with past lattice
simulations and hyperscaling relations, as well as with the analytic solution
of the quenched, planar gauged Nambu-Jona Lasinio model solved by continuum
Schwinger-Dyson equation techniques.

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The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg