Electromagnetic Nucleon-to-Delta Transition in Holographic QCD

Abstract

We study nucleon-to-delta electromagnetic transition form factors and relations between them within the framework of holographic dual model of QCD proposed by Sakai and Sugimoto. In this setup, baryons appear as topological solitons of the five dimensional holographic gauge theory that describes a tower of mesons and their interactions. We find a relativistic extension of the nucleon-delta-vector meson interaction vertices and use these to calculate transition form factors from holographic QCD. We observe that at low momentum transfer, magnetic dipole, electric and Coulomb quadrupole form factors and their ratios follow the patterns expected in the large N_c limit. Our results at this approximation are in reasonable agreement with experiment.

19 pages, 1 figure. References added and typos fixed

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Cited by in corpus (25)

• Light-Front Holographic QCD and Emerging Confinement
• Studies of Nucleon Resonance Structure in Exclusive Meson Electroproduction
• Electroexcitation of nucleon resonances
• 50 Years of Quantum Chromodynamics
• Transition between nuclear and quark-gluon descriptions of hadrons and light nuclei
• Nucleon to Delta electromagnetic transition in the Dyson-Schwinger approach
• Excited Baryons in Holographic QCD
• Electromagnetic Transition Form Factors of Baryon Resonances
• A Matrix Model for Baryons and Nuclear Forces
• Long-distance properties of baryons in the Sakai-Sugimoto model
• Holographic aspects of three dimensional QCD from string theory
• Nucleon resonances with higher spins in soft-wall AdS/QCD
• Valence quark contributions for the ${\gamma }^{\ast }N\to N(1440)$ form factors from Light-Front holography
• Electroexcitation of the Delta(1232)3/2+ and Delta(1600)3/2+ in a light-front relativistic quark model
• N* Experiments and their Impact on Strong QCD Physics
• Stress inside the pion in holographic light-front QCD
• Gravitational form factors of pion from top-down holographic QCD
• Hadronic Form Factor Models and Spectroscopy Within the Gauge/Gravity Correspondence
• Generalized baryon form factors and proton structure functions in the Sakai-Sugimoto model
• Production of negative parity baryons in the holographic Sakai-Sugimoto model
• Electromagnetic transition form factors, $E2/M1$ and $C2/M1$ ratios of the baryon decuplet
• Nucleon to $\Delta$ transition form factors and empirical transverse charge densities
• New Sum Rules from Low Energy Compton Scattering on Arbitrary Spin Target
• Relativistic baryons in the Skyrme model revisited
• Scalar-glueball-mediated scale-anomaly dominance of the confining pressure of the pion in holographic QCD