28 July 2024 to 3 August 2024
Europe/London timezone

The spectrum of open confining strings in the large-$N$ limit

30 Jul 2024, 17:15
1h
Poster Vacuum Structure and Confinement Poster session and reception

Speaker

Dr Alireza sharifian (CeFEMA, Departamento de F\'isica, Instituto Superior T\'ecnico (Universidade de Lisboa))

Description

We compute the spectra of open flux tubes formed between a static quark-antiquark pair for various $SU(N)$ gauge groups in the large-N limit, focusing on different symmetries. Specifically, we present spectra up to N=6 and for eight different symmetries of the flux tube. In this study, we employed an anisotropic Wilson action, a large number of suitable operators, and solved the generalized eigenvalue problem to identify a significant number of excitations for different flux tube symmetries. The spectra are compared with the Nambu-Goto string model, revealing novel phenomena such as the presence of massive axions in the flux tube. We find that the mass of the axion in the open flux tube spectra sector is consistent with the mass obtained in the closed flux tube sector.

Primary author

Dr Alireza sharifian (CeFEMA, Departamento de F\'isica, Instituto Superior T\'ecnico (Universidade de Lisboa))

Co-authors

Dr Andreas Athenodorou (Computation-based Science and Technology Research Center, The Cyprus Institute) Prof. Pedro Bicudo (CeFEMA, Departamento de F\'isica, Instituto Superior T\'ecnico (Universidade de Lisboa))

Presentation materials