Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generalized Soft Wall Model   We develop an exactly solvable generalization of the soft wall holographic
model for the vector mesons. The generalization preserves the ultraviolet and
infrared asymptotics of the soft wall model and contains an additional free
parameter. This new parameter provides an arbitrary intercept in the Regge like
spectrum of radial excitations and leads to a substantial modification of
asymptotic expansion of the vector correlator at large momentum. The matching
to the Operator Product Expansion from QCD allows to estimate the value of the
new parameter which is shown to be in a good agreement with the phenomenology.
In addition, the mass splitting between the vector and axial mesons arises
naturally via the opposite sign of the introduced contribution to the
intercept.

14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin