PhysRevLett.93.152002.pdf (104.85 kB)
Infrared behaviour and fixed points in Landau gauge QCD
journal contribution
posted on 2023-06-12, 06:35 authored by Jan M Pawlowski, Daniel LitimDaniel Litim, Sergei Nedelko, Lorenz von SmekalWe investigate the infrared behavior of gluon and ghost propagators in Landau-gauge QCD by means of an exact renormalization group equation. We explain how, in general, the infrared momentum structure of Green functions can be extracted within this approach. An optimization procedure is devised to remove residual regulator dependences. In Landau-gauge QCD this framework is used to determine the infrared leading terms of the propagators. The results support the Kugo-Ojima confinement scenario. Possible extensions are discussed.
History
Publication status
- Published
File Version
- Published version
Journal
Physical Review LettersISSN
0031-9007Publisher
American Physical SocietyExternal DOI
Issue
15Volume
93Page range
152002-152005Department affiliated with
- Physics and Astronomy Publications
Notes
Collaboration co-led by Litim and Pawlowski (Erlangen node). This paper studies the non-perturbative behaviour of QCD Greens functions using new RG techniques, where signatures for confinement are detected. Our results are confirmed by recent lattice simulations, and have received wide attention. It has accrued over 90 citations.Full text available
- Yes
Peer reviewed?
- Yes
