Superconformal Algebraic Approach to Hadron Structure

Abstract

Fundamental aspects of nonperturbative QCD dynamics which are not obvious from its classical Lagrangian, such as the emergence of a mass scale and confinement, the existence of a zero mass bound state, the appearance of universal Regge trajectories and the breaking of chiral symmetry are incorporated from the onset in an effective theory based on superconformal quantum mechanics and its embedding in a higher dimensional gravitational theory. In addition, superconformal quantum mechanics gives remarkable connections between the light meson and nucleon spectra. This new approach to hadron physics is also suitable to describe nonperturbative QCD observables based on structure functions, such as GPDs, which are not amenable to a first-principle computation. The formalism is also successful in the description of form factors, the nonperturbative behavior of the strong coupling and diffractive processes. We also discuss in this article how the framework can be extended rather successfully to the heavy-light hadron sector.

Invited talk presented at XII Quark Confinement and the Hadron Spectrum, 29 August to 3 September 2016, Thessaloniki, Greece

References in corpus (10)

• Linear Confinement and AdS/QCD
• Hadronic Spectra and Light-Front Wavefunctions in Holographic QCD
• Light-Front Dynamics and AdS/QCD Correspondence: The Pion Form Factor in the Space- and Time-Like Regions
• Light-Front Holography: A First Approximation to QCD
• Light and heavy mesons in a soft-wall holographic approach
• Baryon Spectrum from Superconformal Quantum Mechanics and its Light-Front Holographic Embedding
• Superconformal Baryon-Meson Symmetry and Light-Front Holographic QCD
• Kinematical and Dynamical Aspects of Higher-Spin Bound-State Equations in Holographic QCD
• Universal Effective Hadron Dynamics from Superconformal Algebra
• Gauge/Gravity Duality and Hadron Physics at the Light-Front

Cited by in corpus (8)

• The Spin Structure of the Nucleon
• Heavy Baryons and their Exotics from Instantons in Holographic QCD
• Determination of ${\Lambda }_{\overline{MS}}$ at five loops from holographic QCD
• Heavy Holographic Exotics: Tetraquarks as Efimov States
• Heavy and Strange Holographic Baryons
• Diffractive Vector Photoproduction using Holographic QCD
• Hadron Spectroscopy and Dynamics from Light-Front Holography and Superconformal Algebra
• Feasibility Study of Pion and Kaon Structure via the Sullivan Process at EicC