Pion form factor from an AdS deformed background

Abstract

We consider a bottom-up AdS/QCD model with a conformal exponential deformation $e^{k{z}^2}$ on a Lorentz invariant AdS background. In this model, we assume the conformal dimension associated with the operator that creates pions at the boundary as $\Delta =3$. Regarding the infrared scale related to photon field $k_{\gamma }$, we analyze two cases: constant and depending on the transferred momentum $q$. In these two cases, we computed the electromagnetic pion form factor as well as the pion radius. We compare our results with experimental data as well as other theoretical (holographic and non-holographic) models. In particular, for the momentum-dependent infrared scale, we find good agreement with the available experimental data as well as non-holographic models.

V1, 23 pages, 4 figures

References in corpus (18)

• Linear Confinement and AdS/QCD
• Light-Front Dynamics and AdS/QCD Correspondence: The Pion Form Factor in the Space- and Time-Like Regions
• Determination of the Charged Pion Form Factor at Q2=1.60 and 2.45 (GeV/c)2
• Light scalar mesons in the soft-wall model of AdS/QCD
• Structure of Vector Mesons in Holographic Model with Linear Confinement
• Light and heavy mesons in a soft-wall holographic approach
• 1/q^2 Corrections and Gauge/String Duality
• Pion Form Factor in Chiral Limit of Hard-Wall AdS/QCD Model
• Electromagnetic form factor of the pion from twisted-mass lattice QCD at Nf=2
• The Cornell Potential from General Geometries in AdS / QCD
• Deep inelastic scattering from gauge string duality in the soft wall model
• Anomalous Form Factor of the Neutral Pion in Extended AdS/QCD Model with Chern-Simons Term
• Pion family in AdS/QCD: the next generation from configurational entropy
• Mesons in a soft-wall AdS-Schwarzschild approach at low temperature
• Proton Structure Functions from an AdS/QCD model with a deformed background
• Conformal Symmetry and Pion Form Factor: Soft and Hard Contributions
• Fluctuation and Dissipation from a Deformed String/Gauge Duality Model
• Light Meson Masses using AdS/QCD modified Soft Wall Model

Cited by in corpus (3)

• Pion dynamics in a soft-wall AdS-QCD model
• The pion in the graviton soft-wall model: phenomenological applications
• The hadron spectra and pion form factor in dynamical holographic QCD model with anomalous 5D mass of scalar field