# Towards a Theory of the QCD String

- Institution: CERN
- Department: Theory Colloquium
- Speaker: Sergei Dubovsky
- Year: 2017
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3000948)
- 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 will review recent progress in understanding the dynamics of confining strings in non-supersymmetric gluodynamics in 3 and 4 space time dimensions. I will argue that the present lattice data allows to formulate a non-trivial straw man Ansatz for the worldsheet theory of long confining strings. According to this Ansatz, pure gluodynamics in 3D is described by a non-critical bosonic string theory without any extra local worldsheet degrees of freedom. I argue that the Ansatz allows to fix quantum numbers of (almost) all glueball states. I confront the resulting predictions with the properties of approximately 39 lightest glueball states observed on a lattice and find a good agreement. .

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## Lectures

1. [Towards a Theory of the QCD String](https://invisiblenetwork.ai/learn/cern/3000948/5ba72e3c0aa7), 1 h (CERN's player)