Abstract
We use the no-wall holographic approach (a relative of the soft-wall one) to construct a universal description of vector mesons with arbitrary quark masses. The proposed model predicts a specific dependence of the parameters of radial Regge trajectories on the quark masses in a reasonable agreement with the meson phenomenology and some theoretical expectations.
Highlights
The bottom-up holographic approach to QCD introduced in Ref. [1] has many interesting applications in the phenomenology of the strong interactions
On the UV boundary, the scalar fields Xi are identified with sources of various QCD operators with canonical dimension i
Choosing C2(2) = 0, the equation (8) coincide with the equation on the mass spectrum in the standard holographic soft-wall model [8]
Summary
The bottom-up holographic approach to QCD introduced in Ref. [1] has many interesting applications in the phenomenology of the strong interactions. The action of the simplest holographic no-wall model is defined by d4x dz √g ⎧⎪⎪⎨⎪⎪⎩ On the UV boundary, the scalar fields Xi are identified with sources of various QCD operators with canonical dimension i. The corresponding 5D masses are [7]
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