Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10724304 | Physics Letters B | 2008 | 5 Pages |
Abstract
We derive the form of the infrared gluon propagator by proving a mapping in the infrared of the quantum Yang-Mills and λÏ4 theories. The equivalence is complete at a classical level. But while at a quantum level, the correspondence is spoiled by quantum fluctuations in the ultraviolet limit, we prove that it holds in the infrared where the coupling constant happens to be very large. The infrared propagator is then obtained from the quantum field theory of the scalar field producing a full spectrum. The results are in fully agreement with recent lattice computations. We get a finite propagator at zero momentum, the ghost propagator going to infinity as 1/p2+2κ with κ=0.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Marco Frasca,