The β-function for Yukawa theory at large N f

Autor: Tommi Alanne, Simone Blasi
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Journal of High Energy Physics, Vol 2018, Iss 8, Pp 1-15 (2018)
Druh dokumentu: article
ISSN: 1029-8479
DOI: 10.1007/JHEP08(2018)081
Popis: Abstract We compute the β-function for a massless Yukawa theory in a closed form at the order O 1 / N f $$ \mathcal{O}\left(1/{N}_f\right) $$ in the spirit of the expansion in a large number of flavours N f . We find an analytic expression with a finite radius of convergence, and the first singularity occurs at the coupling value K = 3.
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