# Bootstrapping mesons at large N

- Institution: CERN
- Department: Conferences, Workshops & Schools
- Speaker: Jan Albert
- Year: 2024
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3011807)
- 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)

Four-dimensional QCD has been known to simplify dramatically in the large N limit for decades. Yet, even in this limit, its solution still evades us. In this talk, I will discuss how one can instead proceed with a bootstrap approach to carve out the space of large N confining gauge theories that are compatible with a given set of assumptions. One expects to corner large N QCD once sufficiently many constraints are imposed. After motivating a certain set of assumptions, I will review the constraints that follow from 2→2 pion scattering for various meson couplings. We will see how some of these bounds lead to an extremal amplitude which is in uncanny agreement with real-world QCD..

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## Lectures

1. [Bootstrapping mesons at large N](https://invisiblenetwork.ai/learn/cern/3011807/9d2f66626550), 33 min (CERN's player)