Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: AdS/QCD Modified Soft Wall Model and Light Meson Spectra   We analyze here the mass spectrum of light vector and scalar mesons applying
a novel approach where a modified soft wall model that includes a UV-cutoff at
a finite $z$-position in the AdS space is used, thus introducing an extra
energy scale. For this model, we found that the masses for the scalar and
vector spectra are well fitted within $\delta_{RMS}=7.64\%$ for these states,
with non-linear trajectories given by two common parameters, the UV locus
$z_{0}$ and the quadratic dilaton profile slope $\kappa$. We also conclude that
in this model, the $f_{0}(500)$ scalar resonance cannot be fitted
holographycally as a $q\overline{q}$ state since we cannot find a trajectory
that include this pole. This result is in agreement with the most recent
phenomenological and theoretical methods.

23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
2
The categories of this paper are: math
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph