Bootstrapping mesons at large N: Regge trajectory from spin-two maximization
Jan Albert, Johan Henriksson, Leonardo Rastelli, Alessandro Vichi
Abstract
A bstract We continue the investigation of large N QCD from a modern bootstrap perspective, focusing on the mesons. We make the natural spectral assumption that the 2 → 2 pion amplitude must contain, above the spin-one rho meson, a massive resonance of spin two. By maximizing its coupling we find a very interesting extremal solution of the dual bootstrap problem, which appears to contain at least a full Regge trajectory. Its low-lying states are in uncanny quantitative agreement with the meson masses in the real world.
Topics & Concepts
PhysicsBootstrapping (finance)MesonParticle physicsSpin (aerodynamics)TrajectoryBootstrap modelQuantum electrodynamicsNuclear physicsQuantum mechanicsParticle decayFinancial economicsThermodynamicsEconomicsQuantum Chromodynamics and Particle InteractionsParticle physics theoretical and experimental studiesHigh-Energy Particle Collisions Research