2012/10/31 by S. S. Afonin
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Generalization #Mathematical analysis #Mathematical physics #Mathematics #Meson #Operator (biology) #Particle physics #Particle physics theoretical and experimental studies #Phenomenology (philosophy) #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum electrodynamics #Sign (mathematics) #hep-ph
paper · pdf · doi:10.1016/j.physletb.2013.01.055
published as Phys. Lett. B719 (2013) 399 · 14 pages, many new discussions and fits are added, typos are corrected, version accepted by Phys. Lett. B
arxiv created 2013/01/27 · openalex publication_date 2013/01/30 · arxiv updated 2013/07/31 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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.