2017/06/30 by Santiago Cortés, Santiago Triana Cortés, Miguel Ángel Martín Contreras +1 · 5 citations
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Cutoff #Dilaton #Geometry #Mathematical physics #Mathematics #Meson #Particle physics #Particle physics theoretical and experimental studies #Physics #Quadratic equation #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum electrodynamics #Quantum mechanics #Scalar (mathematics) #Scalar meson #Spectral line #Vector meson #hep-ph #hep-th
paper · pdf · doi:10.1103/physrevd.96.106002
published in Physical review. D/Physical review. D. 96(10) (American Physical Society) · 9 pages, no figures, new references added, typeset in revtex format
arxiv created 2017/07/14 · openalex publication_date 2017/11/03 · arxiv updated 2017/11/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We analyze light vector and scalar meson mass spectra using a novel approach where a modified soft wall model with a UV cutoff is considered. Including this cutoff introduces an extra energy scale. For this model, we found that the masses for the scalar and vector spectra are well fitted within a very small root mean square (RMS) error for 14 of these states, with nonlinear trajectories given by two common parameters, the UV locus z0, and the quadratic dilaton profile slope \ensuremathκ. We concluded that in this model the f0(500) scalar resonance cannot be fitted holographically as a qq state since we could not find a trajectory that included this pole. This result is in agreement with the most recent phenomenological and theoretical methods.