Running coupling in Yang-Mills theory - a flow equation study -

Details Running coupling in Yang-Mills theory - a flow equation study - Running coupling in Yang-Mills theory - a flow equation study -

2002-02-28

arxiv.org/abs/hep-th/0202207v2

Phys.Rev. D66 (2002) 025006

Physics

High Energy Physics

High Energy Physics - Theory

35 pages, 3 figures, v2: References added, minor improvements, version to appear in PRD

Scientific paper

10.1103/PhysRevD.66.025006

The effective average action of Yang-Mills theory is analyzed in the framework of exact renormalization group flow equations. Employing the background-field method and using a cutoff that is adjusted to the spectral flow, the running of the gauge coupling is obtained on all scales. In four dimensions and for the gauge groups SU(2) and SU(3), the coupling approaches a fixed point in the infrared.

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