Infrared Behaviour of SU(2) Gauge Theory with Nf fundamental flavours

V. Leino, K. Rummukainen, J.M. Suorsa, K. Tuominen, S. Tähtinen

Research output: Contribution to journalConference articleScientificpeer-review


We review our recent results on the infrared behaviour of the SU(2) gauge theory with Nf massless fundamental flavour fermions. We have analyzed the running of the coupling in SU(2) gauge theories with six and eight fermionic flavours using the gradient flow step scaling method.
From the running of the coupling, we see a clear indication of an infrared stable fixed point in theories with six and eight flavours. These results are confirmed by our mass spectrum study, where we varied the number of flavours from two to six. We also compute the anomalous dimensions of mass and coupling.
Original languageEnglish
Article number225
JournalPoS Proceedings of Science
Number of pages8
Publication statusPublished - 26 Sep 2019
MoE publication typeA4 Article in conference proceedings
EventQuark Confinement and the Hadron Spectrum - Maynooth University, Ireland
Duration: 31 Jul 20186 Aug 2018
Conference number: 13

Fields of Science

  • 114 Physical sciences

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