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Bootstrapping mesons at large N: Regge trajectory from spin-two maximization
oleh: Jan Albert, Johan Henriksson, Leonardo Rastelli, Alessandro Vichi
| Format: | Article |
|---|---|
| Diterbitkan: | SpringerOpen 2024-09-01 |
Deskripsi
Abstract 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.