Nonperturbative Decoupling of Massive Fermions

Autor:	Tobias Rindlisbacher, Kari Rummukainen, Ahmed Salami, Kimmo Tuominen
Přispěvatelé:	Department of Physics, Helsinki Institute of Physics, Mind and Matter, Particle Physics and Astrophysics, General Division (Department of Physics) (-2009), Teachers' Academy
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	Condensed Matter::Quantum Gases High Energy Physics - Lattice 530 Physics High Energy Physics::Lattice High Energy Physics - Lattice (hep-lat) General Physics and Astronomy FOS: Physical sciences 114 Physical sciences
Zdroj:	Rindlisbacher, Tobias; Rummukainen, Kari; Salami, Ahmed; Tuominen, Kimmo (2022). Nonperturbative Decoupling of Massive Fermions. Physical review letters, 129(13), p. 131601. American Physical Society 10.1103/PhysRevLett.129.131601 Physical Review Letters
DOI:	10.1103/PhysRevLett.129.131601
Popis:	SU(2) gauge theory with Nf=24 massless fermions is non-interacting at long distances, i.e. it has an infrared fixed point at vanishing coupling. With massive fermions the fermions are expected to decouple at energy scales below the fermion mass, and the infrared behaviour is that of confining SU(2) pure gauge theory. We demonstrate this behaviour non-perturbatively with lattice Monte Carlo simulations by measuring the gradient flow running coupling. 12 pages, 10 figures, appendix added
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e4000fc6b91908f944d8f70dde10378 https://boris.unibe.ch/173589/1/PhysRevLett.129.131601.pdf Zobrazit plný text záznamu