# Regge Trajectories from Pion Scattering at Large N

- Institution: CERN
- Department: Conferences, Workshops & Schools
- Speaker: Alessandro Vichi
- Year: 2023
- Language: English
- Source: [CERN](https://videos.cern.ch/record/2302651)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

I explore the Effective Field Theory bootstrap formalism, leveraging dispersion relations to establish sum rules linking low-energy scattering amplitudes to high-energy partial wave expansion. We analyze the impact of different Regge behaviors at large energies and apply the formalism to study Pion Scattering at large-N. Imposing the presence of spin-2 states, we derive a mass bound for additional higher spin states, unveiling a kink structure. Investigation at this kink reveals intriguing agreements with real-world QCD observables. Moreover, the solution's spectrum organizes into Regge-trajectory-like families..

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## Lectures

1. [Regge Trajectories from Pion Scattering at Large N](https://invisiblenetwork.ai/learn/cern/2302651/e7711a266753), 33 min (CERN's player)